4223001 Filters, sand
4223002 Filters, kieselguhr
4223004 Filters, cloth
4223005 Filters, felt
4223006 Filters, coconut matting
4223008 Filters, paper
4223010 Filters, stoneware
4223011 Filters, ceramic
4223012 Filters, mineral fibre
4223013 Filters, glass fibre
4223014 Filters, rubberised hair
4223015 Filters, plastic
4223017 Filters, screen
4223018 Filters, edge
4223020 Filters, steam-jacketed
4223021 Filters, self-cleaning
4223022 Filters, cross flow
4223023 Filters, absolute, reverse jet
4223024 Filters, high efficiency
4223025 Filters, throw away element
4223026 Filters, electrostatic
4223027 Filters, back flushing
4223028 Filters, belt type
4223029 Filters, centrifugal
4223030 Filters, horizontal
4223031 Filters, membrane
4223032 Filters, disc
4223033 Filters, vacuum
4223034 Filters, suction
4223036 Filters, pressure
4223037 Filters, chemically cleanable
4223038 Filters, high temperature
4223040 Filters, microbiological
4223041 Filters, sterile
4223042 Microfilters
4223043 Ultrafiltration plant and equipment
4223044 Filters, magnetic
4223045 Filters, air
4223046 Filters, gas
4223047 Filters, boiler feed water
4223048 Filters, sea water
4223049 Filters, water well
4223050 Filters, domestic and drinking water supply
4223051 Filters, swimming pool
4223053 Filters, high efficiency particulate air (HEPA)
4223054 Filters, garden pond and fountain
4223055 Filters, liquid fuel
4223101 Filters, coalescing, liquids in gas
4223102 Filters, coalescing, liquids contaminants
4223104 Filters, continuous
4223105 Filters, leaf
4223106 Filters, bag type
4223107 Filters, rotary (drum)
4223108 Filtration plant, vacuum
4223109 Filters, pocket type
4223112 Filter presses, chemical industry
4223113 Filter aids, chemical plant
4223114 Filters, alkali
4223115 Filters, acid
4223116 Filters, paint
4223117 Filters, varnish
4223118 Filters, solvent
4223119 Filters, ink
4223120 Filters, process water
4223121 Filters, molten metal
4223122 Filters, exhaust pollution control
4223123 Filters, nuclear, biological and chemical (NBC)
4223124 Filters, breathing air
4223125 Filters, odour removal
4223128 Filters for the food industry
4223129 Filters for the drinks and beverages industry
4223131 Filters and filtration equipment for the plastics and rubber processing industries
4223132 Filters and filter presses for the textile industry
4223133 Filters, tannery
4223134 Filters for the footwear industry
4223135 Filters for medical applications
4223136 Filters for liquid gelatine
4223137 Filters and filtration plant for petroleum refineries
4223138 Filters, oil, industrial
4223139 Filters, oil mist
4223140 Filters, oil smoke
4223141 Filters, electrostatic, fume and smoke
4223142 Filters, soldering and welding fume
4223143 Filters, plating
4223144 Filters for metal rolling and wire drawing plant
4223145 Filters, casting, for foundries
4223146 Filters, spark erosion machining applications
4223147 Filters, cutting fluid and coolant
4223148 Filters, dewatering
4223149 Filters, brush clean
4223150 Filters, pulp and papermaking production equipment
4223151 Filters, silo venting
4223152 Filters, internal combustion engine cooling systems
4223153 Filter driers
4223154 Filters for washing machines
4223155 Filters, soot, for diesel engines
4223201 Filters, in-line
4223202 Filter plates
4223203 Filter screens
4223205 Strainers, steam
4223208 Separators and hyper-separators, centrifugal
4223209 Separators, gas-liquid
4223210 Separators, steam-water
4223211 Separators, oily water
4223212 Separators, solid-liquid
4223213 Separators, solid-solid
4223214 Separators, magnetic
4223215 Separators, particle
4223216 Separators, fuel-water, internal combustion engine
4223217 Separators, gas-gas
4223218 Separators, water-radon
4223219 Membrane systems, nanofiltration
4223220 Membranes, ceramic
4223221 Dialysis equipment, industrial
4223222 Filtering layers, chemical industry
4223223 Decanters, chemical industry
4223224 Percolators, chemical industry
4223235 Filter elements, cartridge type
4223236 Filter elements, cellulose powder
4223237 Filter elements, wire wound
4223241 Filter bags
4223242 Filter bags, big bags, for water treatment
4223243 Filter housings, plastic
4223254 Filters for liquids to customer specification
4223255 Filter press installations, complete, to customer specification
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