73036360
Nov 5, 1974
Jun 15, 1976
AIR-CONDITIONING, AIR CIRCULATING, AND HEATING SYSTEMS, EQUIPMENT FOR DRYING SUBSTANCES IN INDUSTRIAL PLANTS AND FOR DRYING SHEET MATERIAL IN INDUSTRIAL PLANTS, EQUIPMENT FOR COOLING SHEET MATERIAL AND SUBSTANCES IN INDUSTRIAL PLANTS, AND COMPONENTS FOR SUCH SYSTEMS AND EQUIPMENTS
Environmental Control ApparatusCONSTRUCTING, INSTALLING, MAINTAINING AND REPAIRING AIR-CONDITIONING, AIR CIRCULATING, AND HEATING SYSTEMS, EQUIPMENT FOR DRYING SUBSTANCES IN INDUSTRIAL PLANTS AND FOR DRYING SHEET MATERIAL IN INDUSTRIAL PLANTS, EQUIPMENT FOR COOLING SHEET MATERIAL AND SUBSTANCES IN INDUSTRIAL PLANTS, AND COMPONENTS FOR SUCH SYSTEMS AND EQUIPMENT
Building Construction and RepairDESIGNING AIR CONDITIONING AND HEATING SYSTEMS, EQUIPMENT FOR DRYING SUBSTANCES IN INDUSTRIAL PLANTS AND FOR DRYING SHEET MATERIAL IN INDUSTRIAL PLANTS, AND EQUIPMENT FOR COOLING SHEET MATERIAL AND SUBSTANCES IN INDUSTRIAL PLANTS
Computer and Scientific