Title:
Dental handpiece
United States Patent 2884695
US Patent References:
Grinding machine
- - 1443415


Inventors:
Ellis, Charles A.
Publication Date:
05/05/1959
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Assignee:
RITTER CO INC
Primary Class:
433/82
Other Classes:
433/132
International Classes:
A61C1/05; A61C1/00