[PT032ABC], Patent Application, Thomas Alva Edison, July 27th, 1888
https://edisondigital.rutgers.edu/document/PT032ABC
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Title
[PT032ABC], Patent Application, Thomas Alva Edison, July 27th, 1888
Editor's Notes
Autograph draft for phonograms made of materials with superior sound qualities: metallic soaps, mixed with waxes, resins, & gums. Appn. filed 30 July.
Author
Date
1888-07-27
Type
Folder/Volume ID
PT032ABC-F
Microfilm ID
114:429
Document ID
PT032ABC
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University