Compressional wave translating device
United States Patent 2434648
US Patent References:
/RE21607.html
- - RE21607

Piezoelectric device
- - 2105010

Acoustic device
- - 2242755


Inventors:
Goodale Jr., Walter D.
Pope, Thomas J.
Publication Date:
01/20/1948
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Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
367/155
Other Classes:
310/337, 381/190, 367/166, 367/165, 333/141
International Classes:
B06B1/06
Foreign References:
GB301034A