Apparatus, devices and installations for the treatment, the distribution, and the purification of water, namely, cartridge filters, and filters for supporting microorganisms each for use in the treatment and purification of water; control apparatus and instruments for the treatment of industrial and household waste, namely, wastewater treatment units in the nature of bioreactors for use in the treatment of wastewater; and apparatus, devices and installations for deodorizing air, namely, biore...

Apparatus, devices and installations for the treatment, the distribution, and the purification of water, namely, chemical sterilizers, ultraviolet sterilizers, cartridge filters, and filters for supporting micro-organisms each for use in the treatment and purification of water; biological materials for use in oxidizing smelly molecules; control apparatus and instruments for the treatment of industrial and household waste, namely; wastewater treatment units; and apparatus, devices and installa...