Title:
Blast actuated ventilator valve
United States Patent 3111078


Inventors:
Breckenridge, Robert A.
Application Number:
US15946961A
Publication Date:
11/19/1963
Filing Date:
12/14/1961
Assignee:
Breckenridge, Robert A.
Primary Class:
Other Classes:
454/902
International Classes:
F24F7/00
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US Patent References:
Foreign References:
CH234555A1944-10-15
GB875912A1961-08-23