Title:
Ventilator
United States Patent 1548839


Inventors:
Henshall, Percival P.
Application Number:
US75159724A
Publication Date:
08/11/1925
Filing Date:
11/22/1924
Assignee:
JOHN J NESBITT INC
Primary Class:
Other Classes:
15/347, 55/445, 55/524, 55/DIG.37, 236/38
International Classes:
B01D45/08
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