73734917
Jun 17, 1988
Oct 9, 1990
LABORATORY EQUIPMENT, NAMELY, ENVIRONMENTAL CONTROL APPARATUS IN THE NATURE OF FUME HOODS, FUME HOOD BLOWERS, LABORATORY BLOWERS, AND PARTS THEREOF; LAMINAR FLOW SAFETY ENCLOSURES AND PARTS THEREOF; LABORATORY DUCTING, FILTERS FOR LABORATORY VENTILATING SYSTEMS, EXHAUST FILTER PACKS; FUME ABSORBERS, FUME SCRUBBERS, WATER PURIFICATION UNITS AND PARTS THEREOF; FREEZE DRYING UNITS, SHELL FREEZERS, REFRIGERATED DRYING CHAMBERS, AND PARTS THEREOF; MANIFOLDS FOR FREEZE DRYING UNITS, DRY ICE FREEZERS, BULK DRYING CHAMBERS, HEATERS FOR LABORATORY DRYING CHAMBERS, GLOVE BOX SAFETY ENCLOSURES FOR USE WITH ENVIRONMENTAL CONTROL APPARATUS AND PARTS THEREOF; AND SINKS WITH INTEGRAL WORK SURFACE
Environmental Control Apparatus