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This category has the following 2 subcategories, out of 2 total.
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181:Technology companies established in 1918
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228:1910s in technology
223:Technology by year
198:1918 in transport
26:Technology portal
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217:Categories
202:(9 C, 2 P)
185:(2 C, 8 P)
150:1960s
145:1950s
140:1940s
135:1930s
130:1920s
124:1910s
118:1900s
113:1890s
108:1880s
103:1870s
98:1860s
233:1918
87:1923
82:1922
77:1921
72:1920
67:1919
62:1918
57:1917
52:1916
47:1915
42:1914
37:1913
219::
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170:T
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