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patents patent drawings us patent office patents from the united kingdom inventions
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Date

2016
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USPTO
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http://uspto.gov/
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label_outline Explore Us Patent Office, Inventions, Patent Drawings

Bulletins, from July 13, 1908 to September 28, 1908

Patent drawing - Phonopore Patent - . Public domain image

Agreement, September 30, 1907

Bulletins, from January 4, 1909 to April 12, 1909

Drawings by Alexander Graham Bell?, from December 29, 1891 to September 13, 1894

Patent drawing - 1983 Arcade cabinet patent 2 - . Public domain image

Bulletins, from January 4, 1909 to April 12, 1909

C. Penfield Bed-Bottoms - DPLA - 5630b3b9cf96bd76bf139274e61e3aaf (page 1)

J.S. Graham Wood Planer - DPLA - 47eef6b016b24315bd45111d85df476e (page 1)

Notebook by Alexander Graham Bell, from January 20, 1910 to March 14, 1910

Bulletins, from January 4, 1909 to April 12, 1909

J. W. Eardly Sled-Brakes - DPLA - 1b402288166154adad670fe70a9e5630 (page 1)

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patents patent drawings us patent office patents from the united kingdom inventions