[N045023], Technical Note, Thomas Alva Edison, Charles Batchelor, May 13th, 1879

Item

Abstract

telephone connections, switchboard, circuit; some kind of galvanometer; fr. 1065 junction box for EL

Date

1879-05-13

Decade

1870-1879

Subject

Identifier

N045023

Folder Set

N045

Title

[N045023], Technical Note, Thomas Alva Edison, Charles Batchelor, May 13th, 1879

Microfilm ID

32:1057

Publisher

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