Title:
Variable gas flow orifice
United States Patent 1913149


Inventors:
Atwater, Harry A.
Application Number:
US54589931A
Publication Date:
06/06/1933
Filing Date:
06/22/1931
Assignee:
Atwater, Harry A.
Primary Class:
Other Classes:
251/209
International Classes:
F16K1/52; G05D7/01
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