[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

Folder/Volume ID

NV17-F

Microfilm ID

4:1005

Document ID

NV17142

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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