DIFF Subgroup
G03G 21/20 Humidity or temperature control
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge > Humidity or temperature control
CPC:
Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge > Humidity or temperature control
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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