Title:
Electroacoustic transducer
United States Patent 3118022


Inventors:
Sessler, Gerhard M.
WEST JAMES E
Application Number:
US19667062A
Publication Date:
01/14/1964
Filing Date:
05/22/1962
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
Other Classes:
55/DIG.39, 307/400, 381/398
International Classes:
H01G7/02; H04M1/03; H04R19/01
View Patent Images:
Foreign References:
GB348573A1931-05-12
GB610297A1948-10-13
GB838021A1960-06-22