Rejects argument that receiver and transmitter are necessary to make one operative. Not patentable together.

U.S. Patent Office. Commissioner

Serrell, Lemuel Wright

Edison, Thomas Alva

U.S. Patent Office

1879-10-10

1870-1879

Letter

Patent application

Telephone

D7929ZER

D7929

[D7929ZER], Letter from U.S. Patent Office. Commissioner to Lemuel Wright Serrell, Thomas Alva Edison, October 10th, 1879

51:575

Thomas Edison National Historical Park

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