Title:
Electrostatic loud-speaker
United States Patent 2631196


Inventors:
Janszen, Arthur A.
Application Number:
US11963949A
Publication Date:
03/10/1953
Filing Date:
10/05/1949
Assignee:
Janszen, Arthur A.
Primary Class:
Other Classes:
381/191
International Classes:
H04R19/02
View Patent Images:
US Patent References:
1813855Electrostatical vibration structure1931-07-07
1799053Electrostatic telephone-receiving instrument1931-03-31
1746540Acoustic device1930-02-11
RE17448N/A1929-10-01
1550381Electrostatic telephone1925-08-18
Foreign References:
GB387546A1933-02-09
GB537931A1941-07-14