[MBN002044A], Technical Note, Charles Batchelor, September 1st, 1877
https://edisondigital.rutgers.edu/document/MBN002044A
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Title
[MBN002044A], Technical Note, Charles Batchelor, September 1st, 1877
Editor's Notes
Finished today a pair of Speaking telegraph instruments made with flat handles at right angles to the axis of barrel part of above instruments" [24 Aug drawings]
Author
Date
1877-09-01
Type
Subject
Folder/Volume ID
MBN002-F
Microfilm ID
90:679
Document ID
MBN002044A
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University