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3809112
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Information
Patent Grant
3809112
References
Source
Patent Number
3,809,112
Date Filed
Not available
Date Issued
Tuesday, May 7, 1974
50 years ago
CPC
F16K21/14 - with special means for preventing the self-closing
Y10T137/402 - Distribution systems involving geographic features
Y10T137/7869 - Biased open
US Classifications
137 - Fluid handling
169 - Fire extinguishers
251 - Valves and valve actuation
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