[NV18111], Technical Note, Thomas Alva Edison, Charles Batchelor, June 1878
https://edisondigital.rutgers.edu/document/NV18111
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Title
[NV18111], Technical Note, Thomas Alva Edison, Charles Batchelor, June 1878
Editor's Notes
Beginning here are undated notes and drawings related to 1878 work on telephone
Supplied year
Date
1878-06-00
Type
Subject
Folder/Volume ID
NV18-F
Microfilm ID
4:1144
Document ID
NV18111
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University