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241:This category contains only the following page.
243:This list may not reflect recent changes
205:Technology companies established in 1940
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238:Pages in category "1940 in technology"
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256:Wireless Set Number 10
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181:1940 in computing
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269:Categories
226:(9 C, 5 P)
209:(2 C, 2 P)
185:(1 C)
150:1990s
145:1980s
140:1970s
135:1960s
130:1950s
124:1940s
118:1930s
113:1920s
108:1910s
103:1900s
98:1890s
285:1940
87:1945
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67:1941
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170:C
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