[D8123ZBW], Letter from Francis Robbins Upton to Thomas Alva Edison, May 17th, 1881
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Title
[D8123ZBW], Letter from Francis Robbins Upton to Thomas Alva Edison, May 17th, 1881
Editor's Notes
Will start making lamps with ground internal parts. [Grinding as in machining, not electrical grounding (DH)] The 16 candle lamps passed 300 hour mark.
Author
Recipient
Mentioned
Date
1881-05-17
Type
Subject
Folder/Volume ID
D8123-F
Microfilm ID
57:888
Document ID
D8123ZBW
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University