[D7838ZDG], Letter from William H Sawyer, Eugene F Phillips to Thomas Alva Edison, July 11th, 1878
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Title
[D7838ZDG], Letter from William H Sawyer, Eugene F Phillips to Thomas Alva Edison, July 11th, 1878
Editor's Notes
Have been experiementing with Rubber tubing with wire spiral for your Telephone tube. The rubber tube is inclined to kink & close the passage. We are making a special article for the purpose by building up a wire spiral. Will send sample in few days which is made & will require time to thoroughly dry.
Recipient
Date
1878-07-11
Type
Folder/Volume ID
D7838-F
Microfilm ID
19:735
Document ID
D7838ZDG
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University