CPC Subgroup
F16K 15/02 with guided rigid valve members
Full Title
Check valves (valves specially adapted for inflatable balls A63B41/00) > with guided rigid valve members
6 direct subcodes
Child Classifications
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- F16K 15/03 with a hinged closure member
- F16K 15/04 shaped as balls
- F16K 15/06 with guided stems
- F16K 15/08 shaped as rings