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DE1513122A1
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Electronic DC control
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GB1033286A
|
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Alternating current track circuit system
|
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DE1774506A1
|
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Speed control for a device for shooting up a cable
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DE1465535A1
|
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Shunt resistor for security systems
|
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DE1465531A1
|
|
Machine for the production of contact cables
|
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DE1263899B
|
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Electric switch operated by hydraulic working cylinders
|
|
DE1272349B
|
|
Analog-digital converter using the comparison method
|
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US3314451A
|
|
Flexible metallic sheaths for cables
|
|
GB1002619A
|
|
Improvements in railway signalling systems
|
|
DE1215742B
|
|
Circuit arrangement for an isolated and pulse-controlled track circuit
|
|
GB963570A
|
|
Improvements in regulator systems for use in combination with rheostatic braking equipment
|
|
US3261995A
|
|
Cooling system for electrical machines
|
|
DE1463852A1
|
|
Arrangement for cooling electrical machines
|
|
ES279324A1
|
|
Improvements in safety relays
|
|
DE1284509B
|
|
Control device for starting and braking DC motors
|
|
GB944114A
|
|
Improvements in railway track circuits
|
|
GB921755A
|
|
Improvements in methods of, and apparatus for, annealing and coating electrically conductive wires
|
|
DE1293282B
|
|
OEarm switch
|
|
DE1171515B
|
|
Active or reactive power-dependent compensation device with ring modulator
|
|
ES263894A1
|
|
System of static control of the gratings of discharge devices (Machine-translation by Google Translate, not legally binding)
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