IC 011. US 013 021 023 031 034. G & S: Water purification apparatus and system comprised primarily of water purification installations, specifically for the eco-friendly and/or chemical-free treatment of water; water softening units; water conditioning systems comprised primarily of conditioning units; water filters; desalination systems comprised primarily of desalinization units; Limestone prevention systems substantially consisting of water treatment filtration units, reverse osmosis units, chemical sterilization units for prevention of limescale build-up
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