[NS7802Q], Technical Note, Thomas Alva Edison, John Kruesi, September 6th, 1878
https://edisondigital.rutgers.edu/document/NS7802Q
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Title
[NS7802Q], Technical Note, Thomas Alva Edison, John Kruesi, September 6th, 1878
Editor's Notes
microphone drawing with dimensions
Author
Date
1878-09-06
Type
Folder/Volume ID
NS7802-F
Microfilm ID
7:775
Document ID
NS7802Q
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University