[D7828D], Letter from Lemuel Wright Serrell to Thomas Alva Edison, February 6th, 1878

Item

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Abstract

Thinks he can put various modifications of telephone circuits in one application because subject is new and can be secured by broad claim -- in second of recent cases TAE will have to divide as they are separate and distinct receiving instruments and neither is a modification of the others, thus, one for acoustic receiver having numerous diaphragms the other for speaker and receiver on the fork and the third for receiver shown in Fig. 3 --

Date

1878-02-06

Decade

1870-1879

Type

Identifier

D7828D

Folder Set

D7828

Title

[D7828D], Letter from Lemuel Wright Serrell to Thomas Alva Edison, February 6th, 1878

Microfilm ID

18:627

Publisher

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

Item sets