[PT031AAG1], Technical Note, Thomas Alva Edison, May 20th, 1889
https://edisondigital.rutgers.edu/document/PT031AAG1
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Title
[PT031AAG1], Technical Note, Thomas Alva Edison, May 20th, 1889
Editor's Notes
Caveat 116 filed Aug 5th 1889.. 33 page caveat with 58 drawings, includes phonograph and wax cylinders, electric lighting, ore milling, storage batteries (fuel cells?), turning pig iron into wrought iron and blast furnace improvements, electric railway brake. Some of the drawing are dated June 19th.
Author
Date
1889-05-20
Type
Subject
Folder/Volume ID
PT031AAG-F
Microfilm ID
113:593
Document ID
PT031AAG1
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University