IC 007. US 013 019 021 023 031 034 035. G & S: Water filtering machines; cartridge filtration units for water filtering machines; filters for water filtering machines; pumps as part of machines; compressed-air pumps; centrifugal pumps; pump diaphragms; vacuum pumps; pumps as part of heating installation machines; valves being parts of machines

IC 009. US 021 023 026 036 038. G & S: Dosage apparatus; dosage dispensers and electrical control apparatus in the nature of non-refrigerated and non-heated electrical liquid dispensers; heat control apparatus in the nature of electric control devices for heating; electric meters; water meters; water level indicators; pressure indicator plugs for valves

IC 011. US 013 021 023 031 034. G & S: Water filtering apparatus featuring water filtering installations; filters for drinking water; water filters as parts of household or industrial installations; regulating or safety accessories for water apparatus and for water pipes, namely, metered valves; water distribution installations, namely, distribution lines, distribution manifolds, drop tubes and blowers; water purifying apparatus and machines; cooling installations for water in the nature of water cooling towers; water sterilizers; water heaters; water softening apparatus and installations; pressure hot water tanks; level controlling metered valves in tanks