Title:
ULTRASONIC PROPAGATION MEDIUM
United States Patent 3506934
Inventors:
Tracy, Robert A.
Publication Date:
04/14/1970
Export Citation:
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Assignee:
SINGER CO
Primary Class:
333/146
Other Classes:
420/485, 420/494
International Classes:
C22C9/00; H03H9/36; (IPC1-7): H03H7/30; C22C9/00
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US Patent References:
3400340Ultrasonic wave transmission devices
3327252Vibratory delay line having novel support
2162308Diaphragm device




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