[N080130], Technical Note, Francis Robbins Upton, January 20th, 1880
https://edisondigital.rutgers.edu/document/N080130
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Title
[N080130], Technical Note, Francis Robbins Upton, January 20th, 1880
Editor's Notes
"39 commutators X 2 = 78 cuts. 156 150 75 commutators"
Author
Date
1880-01-20
Type
Subject
Folder/Volume ID
N080-F
Microfilm ID
35:546
Document ID
N080130
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University