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Procedure and means for producing a contrast image
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Signalling procedure for a lift and a signalling system
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Theatrical stage
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Method for improving the dynamic converter drive for a direct current elevator motor
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Method of modernizing control system of lift group
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Elevator motor control
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Apparatus for inter-processor data transfer in a multi-processor system
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Procedure for disposing of a lift signaling and elevator call button station
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Procedure of arrangement of signal of elevator and elevator calling button station
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Procedure for arranging the signalling of a lift, and call button station
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Procedure and apparatus for conveying external and output data to a processor system
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Method and device for braking a motor with a short-circuit rotor.
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Method and device for braking motor
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Process to brake an engine with rotor in short-circuit and device for use in the process
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Method and apparatus for braking a motor with short-circuit rotor
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