Collection of United States patents granted to Thomas A. Edison, 1869-1884 (1869)
Edison, Thomas A. (Thomas Alva), 1847-1931, Peters, N. (Norris), lithographer, Hammer, William Joseph, 1858-1934, former owner. DSI, Edison, Thomas A. (Thomas Alva), 1847-1931, inscriber. DSI, United States. Patent Office · Washington, D.C. : U.S. Patent Office · leaf 253
the flour and water be mixedtogether while the water is warm, and, I re-mark, that fine wheat flour is the best, butrye or other flour may be employed. I claim as my invention— The chemical paper for telegraphic purposes,prepared in the manner specified. Signed bv me this 10th day of April, A.… … 2 Sheets — Sheet 2. T. A. EDISON.Improvement in Apparatus for Perforating Paper for Telegraphic Use. No. 132,456. Patented Oct. 22, 1872. COG Ooooocooooo ooo o c o o
Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors
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