[D8370H], Letter from Frederic Henry Betts to Edison Electric Light Co, January 6th, 1883

Item

Abstract

Re: question of whether journal boxes of Armington & Sims engine at Pearl St. infringe Charles Porter's 1878 patent, after careful examination I find they do not infringe. Discusses in detail.

Date

1883-01-06

Decade

1880-1889

Type

Identifier

D8370H

Folder Set

D8370

Title

[D8370H], Letter from Frederic Henry Betts to Edison Electric Light Co, January 6th, 1883

Microfilm ID

70:918

Publisher

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

Item sets