DIFF Subgroup
B01D 29/80 for drying
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; Filtering elements therefor > Handling the filter cake in the filter for purposes other than for regenerating > for drying
CPC:
Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor > Handling the filter cake in the filter for purposes other than for regenerating (B01D29/94 takes precedence) > for drying
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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