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 715
ofthe light-giving electrodes and the length ofthe intervening arc. In my light there is noelectric arc. 636 I claim as my invention— 1. In combination with an- electric light hav-ing a continuous incandescent conductor, athermosta tic circuit-regulator, substantially asset forth. 2, In combination… … United States Patent Office. THOMAS A. EDISOK, OP MENU) PARK, NEW JERSEY.IMPROVEMENT IN THERMAL REGULATORS FOR ELECTRIC LIGHTS. Specification forming part or Letlers Patent No. 91.4,637, dated April 39, 1879; application filer! November 18,1878. To all whom it may concern: Be It known that I,…
Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-396-180.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-1187-608.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-48-17.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-741-342.webp)