DIFF Main Group
A62B 23/00 Filters for breathing-protection purposes (gas-filters in general B01D)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Filters for breathing-protection purposes
CPC: Filters for breathing-protection purposes (gas-filters in general B01D)
Full Title
Full titles differ between systems:
IPC:
Filters for breathing-protection purposes
CPC:
Filters for breathing-protection purposes (gas-filters in general B01D)
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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