Title:
Ultrasonic dental tool
United States Patent 3375583

Inventors:
Blank, Robert J.
Bruce, Richman
Publication Date:
04/02/1968
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Assignee:
C & B INC
Primary Class:
433/86
Other Classes:
310/26, 433/104, 601/2
International Classes:
A61C1/07; A61C1/00