[NS7811A], Technical Note, Charles Batchelor, John Kruesi, January 8th, 1878
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Title
[NS7811A], Technical Note, Charles Batchelor, John Kruesi, January 8th, 1878
Editor's Notes
mold for speaking telephone compositions -- measured drawings -- completed mold 1 on 16 Feb (first made on 13th) and mold 2 on 5 Aug
Author
Date
1878-01-08
Type
Subject
Folder/Volume ID
NS7811-F
Microfilm ID
7:914
Document ID
NS7811A
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University