DIFF Subgroup
B01D 29/03 self-supporting
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 > with flat filtering elements > self-supporting
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 > with flat filtering elements (B01D29/39 takes precedence) > self-supporting
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.
Child Classifications
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