[NV11063], Technical Note, Charles Batchelor, Thomas Alva Edison, April 19th, 1877
https://edisondigital.rutgers.edu/document/NV11063
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Title
[NV11063], Technical Note, Charles Batchelor, Thomas Alva Edison, April 19th, 1877
Editor's Notes
Sexty acoust; emg telephone
Date
1877-04-19
Type
Subject
Folder/Volume ID
NV11-F
Microfilm ID
3:939
Document ID
NV11063
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University