[D7838ZDG], Letter from William H Sawyer, Eugene F Phillips to Thomas Alva Edison, July 11th, 1878

Item

Abstract

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.

Date

1878-07-11

Decade

1870-1879

Type

Identifier

D7838ZDG

Folder Set

D7838

Title

[D7838ZDG], Letter from William H Sawyer, Eugene F Phillips to Thomas Alva Edison, July 11th, 1878

Microfilm ID

19:735

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University