Patent Series -- Patent Application Drawings
[PT023-F] Case Nos. 179-699
Most of the drawings in this set are in the form of tracings. They are organized according to case number and relate primarily to electric lighting, electric railways, ore milling, and telegraphy. Only those drawings that have been identified as being part of abandoned or rejected applications have been selected. The drawings accompanying Edison's successful patent applications are available elsewhere in the digital edition.
Courtesy of Thomas Edison National Historical Park.