[PT015-F] Case 665 Telegraphy (1886)
Patent Series -- Patent Application Files
Items
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[PT015AAA], Patent Application, Thomas Alva Edison, July 10th, 1886 1886-07-10 -
[PT015AAC], Letter from U.S. Patent Office. Commissioner to Thomas Alva Edison, Dyer and Seely, July 10th, 1886 1886-07-10 -
[PT015AAD], Letter from U.S. Patent Office. Commissioner to Dyer and Seely, Thomas Alva Edison, September 22nd, 1886 1886-09-22 -
[PT015AAE], Letter from Dyer and Seely to U.S. Patent Office. Commissioner, December 31st, 1886 1886-12-31 -
[PT015AAF], Letter from U.S. Patent Office. Commissioner to Dyer and Seely, Thomas Alva Edison, February 1st, 1887 1887-02-01 -
[PT015AAG], Letter from Dyer and Seely to U.S. Patent Office. Commissioner, February 14th, 1887 1887-02-14 -
[PT015AAH], Letter from U.S. Patent Office. Commissioner to Dyer and Seely, Thomas Alva Edison, February 24th, 1887 1887-02-24 -
[PT015AAI], Letter from Dyer and Seely to U.S. Patent Office. Commissioner, February 21st, 1889 1889-02-21 -
[PT015AAJ], Letter from U.S. Patent Office. Commissioner to Dyer and Seely, Thomas Alva Edison, March 1st, 1889 1889-03-01 -
[PT015AAK], Letter from Dyer and Seely to U.S. Patent Office. Commissioner, February 27th, 1891 1891-02-27 -
[PT015AAL], Letter from U.S. Patent Office. Commissioner to Dyer and Seely, Thomas Alva Edison, March 9th, 1891 1891-03-09