[D7941W], Report from C E Spagnolettis, April 17th, 1879
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Title
[D7941W], Report from C E Spagnolettis, April 17th, 1879
Editor's Notes
Report on telephone pat 2909(1877) finds it original. Enumerates points for "special consideration:" eg., relation to Hughes micro; Reiss [TAE marg: "Reiss didnt use membrane. This is evident error"]; mica diaphgram call device ["done away with"]. Marg: "This is report only on 1st patent not on 2396."
Author
Mentioned
Date
1879-04-17
Type
Folder/Volume ID
D7941-F
Microfilm ID
52:525
Document ID
D7941W
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University