[NV14006] Technical Note, January 6th, 1878

Item

Abstract

headphone and 4 diaphragm -- Models 2 & 3

Date

1878-01-06

Decade

1870-1879

Subject

Identifier

NV14006

Folder Set

NV14

Title

[NV14006] Technical Note, January 6th, 1878

Microfilm ID

4:155

Publisher

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