[D8039Y], Letter from Thomas Alva Edison to Pratt and Whitney Co, July 1880
https://edisondigital.rutgers.edu/document/D8039Y
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Title
[D8039Y], Letter from Thomas Alva Edison to Pratt and Whitney Co, July 1880
Editor's Notes
re cutting gears - long version
Author
Recipient
Date
1880-07-00
Type
Folder/Volume ID
D8039-F
Microfilm ID
55:332
Document ID
D8039Y
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University