Title:
Electric power source
United States Patent 2549464
Inventors:
Hartley V, Ralph L.
Application Number:
US78270347A
Publication Date:
04/17/1951
Filing Date:
10/29/1947
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
Other Classes:
60/39.77, 116/137A, 116/DIG.22, 322/3, 333/141
International Classes:
F03G7/00; H02N11/00
View Patent Images:
Foreign References:
GB188642A1923-11-29
GB424955A1935-03-04