[N047229A], Technical Note, Francis Robbins Upton, April 8th, 1879
https://edisondigital.rutgers.edu/document/N047229A
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Title
[N047229A], Technical Note, Francis Robbins Upton, April 8th, 1879
Editor's Notes
lamp regulator?
Author
Date
1879-04-08
Type
Folder/Volume ID
N047-F
Microfilm ID
33:108
Document ID
N047229A
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University