[W100DJ019A], Technical Note, Thomas Alva Edison, May 6th, 1877

Item

Author

Edison, Thomas Alva

Mentions

Western Union
Phelps, George May, Jr
Pinckney, George T

Date

1877-05-06

Decade

1870-1879

Type

Technical Note

Subject

Multiple telegraphy (duplex, quadruplex)

Identifier

W100DJ019A

Folder Set

W100DJ

Title

[W100DJ019A], Technical Note, Thomas Alva Edison, May 6th, 1877

Microfilm ID

Rights

National Archives

Publisher

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

Item sets

Patent Interference Files -- Edison v. Dickerson