Title:
Dental apparatus
United States Patent 1858056

Inventors:
Pieper, Alphonse F.
Publication Date:
05/10/1932
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Assignee:
Pieper, Alphonse F.
Primary Class:
604/113
Other Classes:
137/549, 604/248, 251/184, 239/121, 604/150
International Classes:
A61C17/032