Title:
Vacuum appliance
United States Patent 1498430


Inventors:
Doerfler, Aloysius C.
Application Number:
US41293120A
Publication Date:
06/17/1924
Filing Date:
09/27/1920
Assignee:
Doerfler, Aloysius C.
Primary Class:
Other Classes:
601/15, 604/20, 607/86
International Classes:
A61N5/06
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