[D8630ZBJ], Letter from Francis Robbins Upton to Thomas Alva Edison, June 7th, 1886
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Title
[D8630ZBJ], Letter from Francis Robbins Upton to Thomas Alva Edison, June 7th, 1886
Editor's Notes
[One-page letter from Berlin] Upton concerned that Siemens hurting Edison Co. in Germany. Spending money "liberally" to try to "beat" Siemens. Does not know how Siemens "treat[s]" German carbons; does not use furnace. According to Upton, Siemens makes lamps from "natural fibre," sells "16 c.p. lamps to take .55 amperes 100 volts to last 800 hours." [lamps]
Author
Recipient
Date
1886-06-07
Type
Folder/Volume ID
D8630-F
Microfilm ID
79:803
Document ID
D8630ZBJ
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University