HEATING AND AIR CONDITIONING SYSTEMS, COMPRISING HEAT PUMPS, EVAPORATOR/CONDENSORS, PUMPS, AIR TRAP/FILTERS, HOSES, CLAMPS, VALVES AND FLOWMETERS

PORTABLE SPRAYING APPARATUS-NAMELY, TANK SPRAYERS FOR SPRAYING INSECTICIDES, HERBICIDES, ETC., AND FOR USE AS FIRE EXTINGUISHERS, AND COMPONENT PARTS OF SAID SPRAYERS AND FIRE EXTINGUISHERS

ENGINE-OR MOTOR-ATTACHABLE [ HYDRAULIC] CENTRIFUGAL AND ROTARY PUMP UNITS