DIFF Subgroup
C02F 11/18 by thermal conditioning (by pyrolysis C02F11/10)
Introduced: January 1980
Title
Titles differ between systems:
IPC: by thermal conditioning
CPC: by thermal conditioning (by pyrolysis C02F11/10)
Full Title
Full titles differ between systems:
IPC:
Treatment of sludge; Devices therefor > by thermal conditioning
CPC:
Treatment of sludge; Devices therefor > by thermal conditioning (by pyrolysis C02F11/10)
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1980.
Child Classifications
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