[MBN002059], Technical Note, Charles Batchelor, June 1st, 1878

Item

Abstract

microphone; arrangement of Hughes is infringement

Date

1878-06-01

Decade

1870-1879

Identifier

MBN002059

Folder Set

MBN002

Title

[MBN002059], Technical Note, Charles Batchelor, June 1st, 1878

Microfilm ID

90:686

Publisher

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