Draft contract between TAE, as agent for himself, Bergmann, and E.H. Johnson, and Zalman G. Simmons; in return for $5,000, Simmons received sole charge and management of "discoveries, inventions, and improvements" in transmission of articulate speech over wires as specified in certain patent applications for the purpose of making experiments aimed at further improvements to ready telephone for commercial use.

Simmons, Zalmon Gibert

Bergmann, Sigmund

Edison, Thomas Alva

U.S. Patent Office

Western Union

1885-09-00

1880-1889

Agreement

Contracts and other legal concerns

Patent assignments, licenses, and royalties

Telephone

D8547ZAU

D8547

[D8547ZAU], Agreement, Thomas Alva Edison, Sigmund Bergmann, Zalmon Gibert Simmons, September 1885

78:884

Thomas Edison National Historical Park

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