United States Patent 2095391
Inventors:
Legg, Joseph W.
Publication Date:
10/12/1937
Assignee:
WESTINGHOUSE ELECTRIC & MFG CO
Other Classes:
348/739, 315/208, 348/522, 315/327, 315/112, 348/E05.014, 315/205, 315/326, 348/202
International Classes:
H04N5/073; H04N5/067