Thomas Edison’s Patent Drawing for the Incandescent Electric Lamp, 1882

Citation: 
"Thomas Edison's Patent Drawing for the Incandescent Electric Lamp, 9/19/1882," in Department of the Interior. Patent Office. 1849-1925 Record Group 241: Records of the Patent and Trademark Office, 1836 - 1978, Series: Utility Patent Drawings, 1837 - 1911
Library Item date: 
1882