[NS7802O], Technical Note, John Kruesi, July 27th, 1878
https://edisondigital.rutgers.edu/document/NS7802O
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Title
[NS7802O], Technical Note, John Kruesi, July 27th, 1878
Editor's Notes
measured drawing of megaphone
Author
Date
1878-07-27
Type
Folder/Volume ID
NS7802-F
Microfilm ID
7:772
Document ID
NS7802O
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University