73838804
Nov 13, 1989
Jan 15, 1991
DUCTLESS ENCLOSURES FOR CONTAINMENT AND DIFFUSION OF COMMERCIAL, INDUSTRIAL OR LABORATORY FUMES AND COMPONENT PARTS THEREOF, NAMELY FILTERS, BLOWERS, ALARMS, LIGHTING, PLENUMS, TRAYS, CARTS, BASES, AND ENCLOSURE SECTIONS
Environmental Control Apparatus