[PT032ABP], Patent Application, Thomas Alva Edison, February 1st, 1889
https://edisondigital.rutgers.edu/document/PT032ABP
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Title
[PT032ABP], Patent Application, Thomas Alva Edison, February 1st, 1889
Editor's Notes
2 pages of undated rough sketches and notes related to U.S. Pat. 437,425 for Phonograph Recorder, which was executed on 890201
Author
Date
1889-02-01
Type
Folder/Volume ID
PT032ABP-F
Microfilm ID
114:609
Document ID
PT032ABP
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University