DIFF Subgroup
F16K 15/20 specially designed for inflatable bodies, e.g. tyres (connecting valves to inflatable bodies B60C29/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: specially designed for inflatable bodies, e.g. tyres
CPC: specially designed for inflatable bodies, e.g. tyres (connecting valves to inflatable bodies B60C29/00)
Full Title
Full titles differ between systems:
IPC:
Check valves > specially designed for inflatable bodies, e.g. tyres
CPC:
Check valves (valves specially adapted for inflatable balls A63B41/00) > specially designed for inflatable bodies, e.g. tyres (connecting valves to inflatable bodies B60C29/00)
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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