463:
471:
228:), amended November 11, 2020, Works of legal persons or organizations without legal personality, or service works, or audiovisual works, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation. For photography works of natural persons whose copyright protection period expires before June 1, 2021 belong to the public domain. All other works of natural persons enter the public domain 50 years after the death of the creator.
498:
287:
201:
72:
483:
This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as
262:
Works of foreign (non-U.S.) origin must be out of copyright or freely licensed in both their home country and the United States in order to be accepted on
Commons. Works of Chinese origin that have entered the public domain in the U.S. due to certain circumstances (such as publication in
173:
because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
267:(URAA) if the work was under copyright in its country of origin on the date that the URAA took effect in that country. (For the People's Republic of China, the URAA took effect on January 1, 1996. For the Republic of China (ROC), the URAA took effect on January 1, 2002.
666:
301:
and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and
Venezuela is 60
636:
254:, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation, and all other applicable works enter the public domain 50 years after the death of the creator.
292:
43:
725:
786:
743:
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
489:
509:
567:
550:
504:
Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar,
665:
660:
298:
484:
when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate
746:
If the file has been modified from its original state, some details may not fully reflect the modified file.
646:
83:
51:
453:
235:
693:
The following pages on the
English Knowledge use this file (pages on other projects are not listed):
263:
noncompliance with U.S. copyright formalities) may have had their U.S. copyright restored under the
91:
251:
676:
297: Note that this work might not be in the public domain in countries that do not apply the
250:, etc.), all photographs and cinematographic works, and all works whose copyright holder is a
279:
Please provide where the image was first published and who created it or held its copyright.
635:
630:
42:
247:
209:
169:
78:
162:
505:
485:
771:
268:
221:
264:
443:
434:
697:
295:
to indicate why this work is in the public domain in the United States.
243:
239:
231:
425:
416:
407:
398:
389:
380:
371:
362:
353:
344:
335:
326:
317:
308:
225:
217:
603:
Click on a date/time to view the file as it appeared at that time.
730:
195:
66:
496:
469:
461:
220:(with legal jurisdiction in the mainland only, excluding
534:
Add a one-line explanation of what this file represents
444:
435:
715:
110:
90:
Commons is a freely licensed media file repository.
213:
in China because its term of copyright has expired.
426:
417:
408:
399:
390:
381:
372:
363:
354:
345:
336:
327:
318:
309:
56:(246 × 325 pixels, file size: 48 KB, MIME type:
71:
8:
748:
605:
530:
452:
175:
708:The following other wikis use this file:
121:
795:
784:
776:
766:
758:
750:
695:
581:
565:
548:
545:
526:
519:
200:
120:
7:
683:User created page with UploadWizard
594:
490:Commons:When to use the PD-scan tag
216:According to copyright laws of the
741:
539:
533:
510:Commons:When to use the PD-Art tag
276:
206:
166:
103:
49:
538:
800:118368fc67a6b4a2111ad4b887cc9db4
760:Date and time of data generation
524:
285:
234:(currently with jurisdiction in
199:
70:
31:
21:
521:
293:United States public domain tag
230:According to copyright laws of
46:No higher resolution available.
14:
520:
26:
1:
36:
546:Items portrayed in this file
488:tag instead. For usage, see
265:Uruguay Round Agreements Act
817:
722:Usage on zh.wikipedia.org
712:Usage on www.wikidata.org
218:People's Republic of China
778:File change date and time
595:
207:This image is now in the
16:
523:
299:rule of the shorter term
291:You must also include a
143:周仁-中國冶金陶瓷學的先師 周俏紈《老交大名師》
77:This is a file from the
682:
652:
508:may be applicable. See
147:
139:
134:
131:
113:
81:. Information from its
781:14:10, 9 November 2022
631:05:08, 9 November 2022
501:
474:
466:
84:description page there
500:
473:
465:
167:This image is in the
763:13:42, 25 July 2013
661:05:49, 25 July 2013
502:
475:
467:
135:no later than 1949
804:
803:
704:Global file usage
686:
648:Materialscientist
532:
518:
517:
513:
493:
479:
478:
456:
304:
282:
272:
232:Republic of China
194:
193:
155:
154:
99:
98:
79:Wikimedia Commons
32:Global file usage
808:
749:
673:
643:
503:
499:
482:
472:
464:
457:
290:
289:
288:
275:
257:
203:
202:
196:
190:
187:
184:
181:
176:
163:
125:
117:
111:
95:
74:
73:
67:
61:
59:
816:
815:
811:
810:
809:
807:
806:
805:
797:Unique image ID
737:
702:
694:
687:
679:
671:
649:
641:
597:
596:
593:
592:
591:
590:
589:
588:
587:
586:
584:
574:
573:
572:
570:
559:
558:
557:
556:
555:
553:
537:
536:
535:
514:
497:
470:
462:
446:
437:
428:
419:
410:
401:
392:
383:
374:
365:
356:
347:
338:
329:
320:
311:
307:
303:
286:
283:
281:
273:
260:Important note:
252:juristic person
188:
185:
182:
179:
161:
156:
127:
115:
108:
101:
100:
89:
88:
87:is shown below.
63:
57:
55:
48:
47:
12:
11:
5:
814:
812:
802:
801:
798:
794:
793:
790:
783:
782:
779:
775:
774:
769:
765:
764:
761:
757:
756:
753:
740:
736:
735:
734:
733:
728:
720:
719:
718:
706:
705:
701:
700:
692:
691:
690:
685:
684:
681:
677:
674:
668:
663:
658:
655:
654:
651:
647:
644:
638:
633:
628:
624:
623:
620:
617:
614:
611:
608:
601:
600:
585:
582:
580:
579:
578:
577:
576:
575:
571:
566:
564:
563:
562:
561:
560:
554:
549:
547:
544:
543:
542:
541:
540:
529:
528:
525:
522:
516:
515:
477:
476:
459:
296:
274:
204:
192:
191:
160:
157:
153:
152:
149:
145:
144:
141:
137:
136:
133:
129:
128:
118:
109:
107:
104:
102:
97:
96:
75:
65:
64:
45:
41:
40:
39:
34:
29:
24:
19:
13:
10:
9:
6:
4:
3:
2:
813:
799:
796:
791:
788:
785:
780:
777:
773:
770:
768:Software used
767:
762:
759:
754:
751:
747:
744:
738:
732:
729:
727:
724:
723:
721:
717:
714:
713:
711:
710:
709:
703:
699:
696:
688:
680:
675:
669:
667:
664:
662:
659:
657:
656:
650:
645:
639:
637:
634:
632:
629:
626:
625:
621:
618:
615:
612:
609:
607:
606:
604:
598:
569:
552:
511:
507:
495:
494:
491:
487:
480:
468:
460:
458:
455:
451:
447:
442:
438:
433:
429:
424:
420:
415:
411:
406:
402:
397:
393:
388:
384:
379:
375:
370:
366:
361:
357:
352:
348:
343:
339:
334:
330:
325:
321:
316:
312:
305:
300:
294:
284:
280:
277:To uploader:
271:
269:
266:
261:
256:
255:
253:
249:
245:
241:
237:
233:
229:
227:
223:
219:
214:
212:
211:
210:public domain
205:
198:
197:
183:Public domain
180:Public domain
178:
177:
172:
171:
170:public domain
165:
164:
158:
150:
146:
142:
138:
130:
124:
119:
112:
105:
93:
86:
85:
80:
76:
69:
68:
62:
53:
44:
38:
35:
33:
30:
28:
25:
23:
20:
18:
15:
745:
742:
707:
602:
599:File history
481:
449:
440:
431:
422:
413:
404:
395:
386:
377:
368:
359:
350:
341:
332:
323:
314:
306:
278:
259:
258:
215:
208:
168:
122:
92:You can help
82:
50:
22:File history
355:slovenščina
114:Description
772:GIMP 2.4.7
726:中央研究院第一屆院士
689:File usage
670:261 × 341
640:246 × 325
616:Dimensions
583:image/jpeg
568:media type
506:{{PD-Art}}
486:{{PD-old}}
382:македонски
373:Tiếng Việt
58:image/jpeg
27:File usage
716:Q10920123
613:Thumbnail
610:Date/Time
337:português
222:Hong Kong
159:Licensing
739:Metadata
698:Zhou Ren
527:Captions
37:Metadata
789:version
672:(41 KB)
642:(48 KB)
627:current
622:Comment
551:depicts
531:English
391:русский
364:Tagalog
328:English
319:Deutsch
310:čeština
123:中文（臺灣）：
106:Summary
54:
755:Picasa
752:Author
448:
439:
430:
421:
412:
403:
400:മലയാളം
394:
385:
376:
367:
358:
349:
346:română
340:
331:
322:
313:
302:years.
244:Kinmen
240:Penghu
236:Taiwan
148:Author
140:Source
116:周仁.jpg
52:周仁.jpg
436:简体中文
248:Matsu
226:Macao
189:false
186:false
126:周仁院士像
787:Exif
678:Urga
619:User
445:繁體中文
224:and
132:Date
17:File
792:2.2
653:FFT
454:+/−
427:日本語
418:한국어
409:ไทย
731:周仁
246:,
242:,
238:,
151:不詳
512:.
492:.
450:∙
441:∙
432:∙
423:∙
414:∙
405:∙
396:∙
387:∙
378:∙
369:∙
360:∙
351:∙
342:∙
333:∙
324:∙
315:∙
270:)
94:.
60:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
