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990989
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Patent Grant
990989
References
Source
Patent Number
990,989
Date Filed
Not available
Date Issued
Tuesday, May 2, 1911
113 years ago
CPC
E03B9/02 - Hydrants Arrangements of valves therein Keys for hydrants
Y10T137/5521 - Unidirectional abutting connection between main valve or actuator and waste valve
Y10T137/86936 - Pressure equalizing or auxiliary shunt flow
US Classifications
137 - Fluid handling
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