Category:1872 in technology
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164:This category has only the following subcategory.
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211:1870s in technology
206:Technology by year
181:1872 in transport
26:Technology portal
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200:Categories
185:(7 C, 1 P)
150:1920s
145:1910s
140:1900s
135:1890s
130:1880s
124:1870s
118:1860s
113:1850s
108:1840s
103:1830s
98:1820s
216:1872
87:1877
82:1876
77:1875
72:1874
67:1873
62:1872
57:1871
52:1870
47:1869
42:1868
37:1867
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170:T
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