IPC Main Group
E03B 3/00 Methods or installations for obtaining or collecting drinking water or tap water
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- WATER SUPPLY; SEWERAGE
- Subclass:
- INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
Related Keywords
CONFINING of water sources
8 direct subcodes
Child Classifications
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- E03B 3/02 from rain-water
- E03B 3/04 from surface water
- E03B 3/06 from underground
- E03B 3/28 from humid air
- E03B 3/3 from snow or ice
- E03B 3/32 with artificial enrichment, e.g. by adding water from a pond or a river
- E03B 3/38 Curbs for springs
- E03B 3/4 Other devices for confining, e.g. trenches, drainage