Title:
Ultrasonic transducer with absorptive load
United States Patent 3403271


Inventors:
Lobdell, Donn D.
Phillips, Edward H.
Application Number:
US52616566A
Publication Date:
09/24/1968
Filing Date:
02/09/1966
Assignee:
HEWLETT PACKARD CO
Primary Class:
Other Classes:
367/162
International Classes:
B06B1/06; G10K11/00
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