[D8248T], Patent Issued, John Hopkinson, June 21st, 1879
https://edisondigital.rutgers.edu/document/D8248T
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Title
[D8248T], Patent Issued, John Hopkinson, June 21st, 1879
Editor's Notes
[filmed as enclosure.] Spceification for Hopkinson's patent 2481 (1879), "Improvements in apparatus for the transmission of power by electricity." For reversing direction of armature rotation in motors.
Author
Date
1879-06-21
Type
Folder/Volume ID
D8248-F
Microfilm ID
63:406
Document ID
D8248T
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University