DIFF Subgroup
A61M 39/24 Check- or non-return valves
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use > Valves or arrangement of valves > Check- or non-return valves
CPC:
Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use (for respiratory devices, e.g. tracheal tubes A61M16/00; artificial heart valves A61F2/24) > Valves or arrangement of valves > Check- or non-return valves
Of 7 combined children, 0 exist in both systems.
7 codes are CPC-only extensions.
Note: 7 CPC extensions are marked as secondary classification only.
Child Classifications
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