MEDICAL VACUUM AND AIR DISTRIBUTION SYSTEM EQUIPMENT, NAMELY-- MEDICAL GAS PIPELINE, MEDICAL GAS AUTOMATIC AND SEMIAUTOMATIC SWTICHOVER MANIFOLDS, MEDICAL GAS OUTLETS, MEDICAL GAS MASTER ALARMS, MEDICAL GAS AREA ALARMS, MEDICAL GAS VALVES, MEDICAL GAS VALVE ENCLOSURES, MEDICAL GAS CONTROLCABINETS, MEDICAL GAS AIR FILTER BANKS, MEDICAL GAS TREATMENT MODULES, MEDICAL GAS REFRIGERANT AND DESICANT DRYERS, MEDICAL GAS PNEUMATICALLY RETRACTABLE CEILING COLUMN, MANUALLY RETRACTABLE CEILING COLUMN AN...

medical vacuum apparatus and air distribution systems and equipment; namely, air compressors and distributors