[NV17142], Technical Note, Charles Batchelor, Thomas Alva Edison, August 29th, 1878
https://edisondigital.rutgers.edu/document/NV17142
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Title
[NV17142], Technical Note, Charles Batchelor, Thomas Alva Edison, August 29th, 1878
Editor's Notes
dictating phon regulator
Date
1878-08-29
Type
Subject
Folder/Volume ID
NV17-F
Microfilm ID
4:1005
Document ID
NV17142
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University