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SU108829A1
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Device for automatic voltage regulation of AC rail circuits
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The method of controlling the arrows of electrical interlocking with main power supply and a device for implementing the method
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The control method of the health of the thread of a traffic light lamp for coded automatic blocking
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SU80608A2
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Zinc carbon element of air depolarization
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SU87314A1
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Electrode Carbon Electrode
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Floodlight
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Track circuit device
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Galvanic cell
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The device for a blackout of traffic lights
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Floodlight
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Electric centralization
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Drive to a multi-contact switch and route-signal switch of the electric centralization apparatus
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Control device for the spotlight
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Device for automatic control of train movement
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Device for telephone communication between administrative and executive posts
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