U.S. patents issued to Thomas A. Edison from 1883-88 (1900)
United States. Patent Office, Edison, Thomas A. (Thomas Alva), 1847-1931 · [Washington, D.C.] : The Office · leaf 100
(No Model.) T. A. EDISON. •3 SECONDARY BATTERY. Patented Mar. 20, 1883. No. 274,292. … WITNESSES: INVENTOR : CL^tZZp N MTin. P»**» lHfcoiT»|*«r W»kSMCl<w«, D C
Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
