[D8006P], Letter from S G Hubert to Thomas Alva Edison, April 12th, 1880
https://edisondigital.rutgers.edu/document/D8006P
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Title
[D8006P], Letter from S G Hubert to Thomas Alva Edison, April 12th, 1880
Editor's Notes
What fraction of HP nec for 1 ELight equal to 1 coal lamp for 1 hour? Making "hand compressed air engine" to allow for rural & agricultural uses. Marg: "1/5 of hp will do."
Author
Recipient
Date
1880-04-12
Type
Folder/Volume ID
D8006-F
Microfilm ID
53:314
Document ID
D8006P
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University