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1962 relay logic Otis elevator
Closeup and relay-sequence of an Old OTIS elevator-controller
Closeup and relay-sequence of an Old OTIS elevator-controller 2
Otis Elevator relay mechanism for stopping the elevator at a specific floor.
Vintage Relay Logic 1967 Otis Traction Elevators - Presbyterian Hospital
1971 Vintage Otis with Relay Logic Controllers in Action!
old OTIS elevator controller (1950)
Haushahn (1969) elevator (relay logic)
1960's Otis Elevator Controller/Selector Mechanism + Governor Fly Ball
Vintage Otis Elevator. Relay logic with MG set
Listen to the relay controller - 1968 Otis Botton Drive Elevator
Machine Room Sighting! Relay Logic Otis Traction Parking Elevator at 95 Wellington St., Toronto, ON
