[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"

Date

1880-01-20

Folder/Volume ID

N080-F

Microfilm ID

35:546

Document ID

N080130

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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