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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F16K 15/04

shaped as balls

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Check valves > with guided rigid valve members > shaped as balls

CPC:

Check valves (valves specially adapted for inflatable balls A63B41/00) > with guided rigid valve members > shaped as balls

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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