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A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and
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Uploaded a work by John
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1841 patent for the modern version of "Venetian Blinds" by John
Hampson of New Orleans, US patent No. 2,223
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Blinds patent John
Hampson of New Orleans 1841 diagram.png
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Blinds patent John
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