E03B

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Description

INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER (drilling wells, obtaining fluids in general from wells E21B; pipe-line systems in general F17D)

Subclasses

SubclassTitle
1/00 Methods or layout of installations for water supply (E03B 3/00, E03B 9/00 take precedence)
1/02 Methods or layout of installations for water supply (E03B 3/00, E03B 9/00 take precedence) for public or like main supply
1/04 Methods or layout of installations for water supply (E03B 3/00, E03B 9/00 take precedence) for domestic or like local supply
3/00 Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F)
3/02 Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) from rain-water
3/03 Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) from rain-water Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts
3/04 Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) from surface water
3/06 Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) from underground
3/08 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 E21B 43/00)
3/10 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 E21B 43/00) by means of pit wells
3/11 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 E21B 43/00) by means of pit wells in combination with tubes, e.g. perforated, extending horizontally, or upwardly inclined, exterior to the pits
3/12 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 E21B 43/00) by means of vertical pipe wells
3/14 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 E21B 43/00) by means of horizontal or oblique wells
3/15 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 E21B 43/00) Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers (with artificial enrichment E03B 3/32)
3/16 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 E21B 43/00) Component parts of wells
3/18 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 E21B 43/00) Component parts of wells Well filters (filters in general B01D 24/00-B01D 35/00)
3/20 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 E21B 43/00) Component parts of wells Well filters (filters in general B01D 24/00-B01D 35/00) of elements of special shape
3/22 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 E21B 43/00) Component parts of wells Well filters (filters in general B01D 24/00-B01D 35/00) of elements of special shape Selection of specified materials
3/24 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 E21B 43/00) Component parts of wells Well filters (filters in general B01D 24/00-B01D 35/00) formed of loose materials, e.g. gravel
3/26 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 E21B 43/00) Component parts of wells Well filters (filters in general B01D 24/00-B01D 35/00) formed of loose materials, e.g. gravel with packed filtering material

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