[N015047], Technical Note, Francis Robbins Upton, Thomas Alva Edison, March 9th, 1879

https://edisondigital.rutgers.edu/document/N015047

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Title

[N015047], Technical Note, Francis Robbins Upton, Thomas Alva Edison, March 9th, 1879

Editor's Notes

magneto machine sketches with gramme type ring, one commutator sketch

Date

1879-03-09

Folder/Volume ID

N015-F

Microfilm ID

30:542

Document ID

N015047

Publisher

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