[D7937ZAU], Letter from Sigmund Bergmann to Thomas Alva Edison, May 20th, 1879
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Title
[D7937ZAU], Letter from Sigmund Bergmann to Thomas Alva Edison, May 20th, 1879
Editor's Notes
"Your ordered call bells fifteen ohms sample measures thirty. Which want?" Marg: "15 ohms."
Author
Recipient
Date
1879-05-20
Type
Subject
Folder/Volume ID
D7937-F
Microfilm ID
52:54
Document ID
D7937ZAU
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University