[PT032AAS], Patent Application, Thomas Alva Edison, January 24th, 1888
https://edisondigital.rutgers.edu/document/PT032AAS
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Title
[PT032AAS], Patent Application, Thomas Alva Edison, January 24th, 1888
Editor's Notes
Patent appl wax phonogram blanks. MOLD BLANK WITH A SLIT IN IT---enable a better blank to be produced, lessen the cost of manufacture and prevent cracking while cooling in the mold filed. Filed 30 Jan 1888
Author
Date
1888-01-24
Type
Folder/Volume ID
PT032AAS-F
Microfilm ID
114:262
Document ID
PT032AAS
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University