Well filters (filters in general B01D24/00 - B01D35/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Well filters

CPC: Well filters (filters in general B01D24/00 - B01D35/00)

Full Title

Full titles differ between systems:

IPC:

Methods or installations for obtaining or collecting drinking water or tap water > from underground > Obtaining and confining water by means of wells > Component parts of wells > Well filters

CPC:

Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) > from underground > Obtaining and confining water by means of wells (applicable to a combination of water and other liquids or to other liquids only E21B43/00) > Component parts of wells > Well filters (filters in general B01D24/00 - B01D35/00)

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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E03B 3/20 of elements of special shape IPC+CPC Available in IPC and CPC
E03B 3/24 formed of loose materials, e.g. gravel IPC+CPC Available in IPC and CPC