[NM020ABD], Technical Note, Thomas Alva Edison, September 21st, 1885

Item

Abstract

Quadruplex on phonoplex wire

Date

1885-09-21

Decade

1880-1889

Identifier

NM020ABD

Folder Set

NM020

Title

[NM020ABD], Technical Note, Thomas Alva Edison, September 21st, 1885

Microfilm ID

44:744

Publisher

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