Multiplex broadcast system - AMERICAN TELEPHONE & TELEGRAPH

Title:

Multiplex broadcast system

United States Patent 1772165

Inventors:

Taylor, Edmund R.
Hanson, Oscar B.

Application Number:

US12983426A

Publication Date:

08/05/1930

Filing Date:

08/17/1926

Export Citation:

Assignee:

AMERICAN TELEPHONE & TELEGRAPH

Primary Class:

455/3.01

Other Classes:

370/486, 455/103

International Classes:

H04H20/10; H04H60/04; H04H1/00

View Patent Images: