Electroacoustic piezoelectricpaste transducer
United States Patent 3070775

Inventors:
Andrews Jr., Daniel E.
Publication Date:
12/25/1962
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Assignee:
Andrews Jr., Daniel E.
Primary Class:
367/157
Other Classes:
310/357, 310/334, 381/173, 417/322, 310/340, 29/25.350
International Classes:
H04R17/00
Other References:
None