73573919
Dec 17, 1985
FILTER CARTRIDGES FOR INSTALLATIONS FOR THE PURIFICATION OF AIR, GAS AND LIQUIDS; FILTER CARTRIDGES FOR INDUSTRIAL RESPIRATOR MASKS AND RESPIRATORS
Environmental Control ApparatusNONWOVEN FABRICS FOR USE AS FILTERING MATERIALS AND NONWOVEN FABRICS FOR FILTERING PURPOSES AS SEMIWORKED PRODUCT
Fabrics