73309571
May 11, 1981
Jul 24, 1984
Acid and/or Alkaline Chemical Washing Agents for Use in Connection with Equipment for Cleaning of Industrial Waste Gases with Washing Solutions-Namely, Phosphoric Acid, Hydrochloric Acid, Sulphuric Acid, Caustic Soda, Hydrogen Peroxide, and Foam Removers
ChemicalsControllers, Regulators, Monitors, Measuring and Control Instruments-Namely, for Measuring and Controlling pH and Redox Potential, pH-/Redox-Transmitters, Integral On/Off Controllers, Integral Pulse-Length Proportional Controllers, Integral Pulse-Frequency Proportional Controllers; Single-Channel and Multi-Channel Printing Recorders; Switching Devices-Namely, Limit Switches; and Parts Thereof
Electrical and Scientific ApparatusPlants and Parts Thereof for Purification of Industrial Waste Gases with Washing Solutions, Comprising Absorbers, Washers, Scrubbers, Filters, Packing Bodies, Ventilators, Fans, Tube Conduits, Armatures and Fittings, Valves, Drop Separators, Mechanical Jetting Devices, Control Consoles with pH Regulators, Washing Tanks, Submersible Pumps, Monitoring and Metering Devices, Grates Made of Steel, Heat Exchangers, Pump Chambers with Level and pH Control, Chemical Dosing Vessels and Liquid Collector Vessels Made of Plastic and Parts Thereof; Devices and Their Parts for Preparation of Waste Water Solutions Comprising Reactor Vessels Made of Plastic and Refined Steel, Heating and Cooling Devices, Stirrers or Agitators, Distillation Columns, Chemical Apparatuses
Environmental Control ApparatusContainers Made of Plastic and Refined Steel for Storage and Transportation of Liquids
Furniture and Articles not Otherwise Classified