73181080
Aug 4, 1978
Oct 20, 1981
Equipment for Industrial Application Comprising Mechanical Particle Collectors in the Nature of Cyclones
MachineryEquipment for Industrial Application Comprising Electrostatic Precipitators
Electrical and Scientific ApparatusEquipment for Industrial Application Comprising Water Softner Units, Water Demineralizer Units, Gravity Filters, Pressure Filters
Environmental Control Apparatus