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Hydraulic control valve
United States Patent 2455625
US Patent References:
Gas-controlling attachment for gas-operated guns
- - 1431059
Governing valve for internal-combustion motors
- - 1437423
Gas-operated automatic firearm
- - 1738501
Gas pressure operated gun
- - 2058897
Sound listening device
- - 2215585
Inventors:
Trantin Jr., Jacob
Publication Date:
12/07/1948
View Patent Images:
Download PDF 2455625
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Assignee:
Trantin Jr., Jacob
Primary Class:
251/207
Other Classes:
138/46
International Classes:
B22D13/12
;
B22D13/00