73512226
Dec 6, 1984
Dec 10, 1985
MACHINERY FOR PRODUCING AN AIR CURTAIN CONSISTING OF A BLOWER, HOUSING, WHEELS, MOTORS AND CONTROLS
MachineryAIR CIRCULATING SYSTEM FOR SUPPLYING, TEMPERING AND DISTRIBUTING AIR FOR BUILDINGS COMPRISING AN AIR SUPPLY FAN WITH OR WITHOUT AN AIR INLET SHUTTER
Environmental Control Apparatus