[MBN003109C], Technical Note, Charles Batchelor, February 27th, 1879
https://edisondigital.rutgers.edu/document/MBN003109C
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Title
[MBN003109C], Technical Note, Charles Batchelor, February 27th, 1879
Editor's Notes
No. 25 make rough box to show design of telephone iwth new receiver principle finished 2 mar
Author
Date
1879-02-27
Type
Folder/Volume ID
MBN003-F
Microfilm ID
90:721
Document ID
MBN003109C
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University