Apparatus in the nature of aerobic bio-reactors used to degrade bio-degradable materials

Water filters, for residential use to filter municipal water supply, consisting of a poly-glass tank containing a carbon filter media through which water is directed to filter chlorine content and therefore improve the water's taste and odor

Sealants for cavity filling and ventilation control in mines and tunnels; fillers for cavity filling and ventilation control in mines and tunnels; foam used for cavity filling and ventilation control in mines and tunnels; sealants, fillers and foam used in the control of spontaneous combustion or fires

PHENOLIC RESIN FOAM FOR FILLING HOLLOW SPACES IN MINING AND TUNNEL CONSTRUCTION

ELECTRICAL RESISTORS, RESISTANCE UNITS, PARTS THEREOF, AND ATTACHMENTS THEREFOR