Method of preparing an electric battery

Method of preparing an electric battery: No. 12512. Supponent.11/27/1904.Issuance on 10/31/1907 / T.A.Edison.- [B.M .: B. and., 1907].-2699-2701 p., 1 l.Il .. -Description of the method of preparing an electric battery.To the privilege of a foreigner T.A.Edison (th. A. Edison), in the city of Lewvellin Park, in the North American state of New Jersey, declared on November 27, 1904 (guard. Svid. No. 25439).Group XI.No. 12512. October 31, 1907.I. Edison, T.A..1.People (collection).Electronic copy source: PBOriginal storage location: VPTB FIPS