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1764521
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Information
Patent Grant
1764521
References
Source
Patent Number
1,764,521
Date Filed
Not available
Date Issued
Tuesday, June 17, 1930
94 years ago
CPC
F16K43/005 - an auxiliary valve closing automatically when the main valve is being disassembled
Y10T137/7613 - Threaded into valve casing
Y10T137/87917 - Flow path with serial valves and/or closures
US Classifications
137 - Fluid handling
251 - Valves and valve actuation
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