[D7903ZDP], Letter from Thomas Alva Edison to Hamilton McKown Twombly, May 6th, 1879

Item

Abstract

Brooks patent may not hold; anticipated by 1861 publication. "At least broad claim cannot be taken on liquid insulator."

Mentions

Date

1879-05-06

Decade

1870-1879

Type

Identifier

D7903ZDP

Folder Set

D7903

Title

[D7903ZDP], Letter from Thomas Alva Edison to Hamilton McKown Twombly, May 6th, 1879

Microfilm ID

49:224

Publisher

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