Hydraulic, electric, steam and belt elevators. (1893)
Otis Brothers & Co. · Otis Brothers · leaf 9
THE. OTIS PRESSURE TANK SYSTEM IN THE MOST COMPACT SHAPE FOR OPERATING HYDRAULIC ELEVATORS 4 THE OTIS STANDARD ELEVATOR … THE OTIS PASSENGER ELEVATOR CAR WITH GRAVITY WEDGE SAFETY PLATFORM. THE OTIS STANDARD ELEVATOR. 5