[D7903ZIV], Letter from Jesse H Bunnell to Thomas Alva Edison, October 13th, 1879

Item

Abstract

Briefly describes 5 alternate ways of constructing a circuit through a moving cage to signal its position. [Is this the elevator annnunciator?]

Date

1879-10-13

Decade

1870-1879

Type

Identifier

D7903ZIV

Folder Set

D7903

Title

[D7903ZIV], Letter from Jesse H Bunnell to Thomas Alva Edison, October 13th, 1879

Microfilm ID

49:420

Publisher

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