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| US Patent 2601741: Doll head with movable eyes (July 1, 1952) |
Showing posts with label patent. Show all posts
Showing posts with label patent. Show all posts
Tuesday, November 1, 2011
Thursday, June 2, 2011
Type Writing Machine (1898)
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| Thaddeus Cahill. 1896. Type Writing Machine. U.S. Patent 600,120, filed October 21, 1896, issued March 1, 1898. |
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