Acoustic or mechanical impedance
United States Patent 2922483

Inventors:
Harris, Wilbur T.
Publication Date:
01/26/1960
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Assignee:
HARRIS TRANSDUCER CORP
Primary Class:
181/290
Other Classes:
89/36.020, 367/152
International Classes:
G10K11/02; G10K11/00
US Patent References:
2557610Resilient mounting
2661942Resilient cushioning device
2684726Wetting agent
Foreign References:
GB140465A