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3490476
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Information
Patent Grant
3490476
References
Source
Patent Number
3,490,476
Date Filed
Not available
Date Issued
Tuesday, January 20, 1970
54 years ago
CPC
F15C3/06 - using balls or pill-shaped disks
Y10T137/2202 - By movable element
Y10T137/2678 - Four port reversing valve
US Classifications
137 - Fluid handling
235 - Registers
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