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