ROTA-GEAR
POWER UNITS-NAMELY, POWER UNITS FOR ELEVATOR EQUIPMENT, FOR AUTOMOTIVE USE AND FOR PASSENGER AND MATERIAL ELEVATORS, SAID POWER UNITS BEING A UNITARY APPARATUS COMPRISING AN ELECTRIC MOTOR, GEAR TYPE PUMP, CONTROL VALVE, OIL RESERVOIR TANK, ELECTRIC CONTROLLER, AND THE NECESSARY SUPPORTING BASE AND LEGS
Expired · May 10, 1951 · 71613733 ·