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DK3650C
(en)
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Power supply for electric Lanes with mechanically inserted Subconductors.
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DK4134C
(en)
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Underground Power Supply for Electrical Lanes with Wiring Departments.
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CH23447A
(en)
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Electric heater
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CH25696A
(en)
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Pantographs on electric railways with above-ground power supply
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DK5413C
(en)
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Power supply for electric Lanes with Particulate system.
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DK2739C
(en)
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Underground Power Supply with Two Independent Power Terminals for Electric Railways.
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DK2431C
(en)
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Power transfer device for electric Railways with underground Power supply.
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CH24906A
(en)
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Electric switch
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DK965C
(en)
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Partially isolated Power supply device for electric Lanes with underground Power supply.
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CH23173A
(en)
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Innovation in electric heaters
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AT52345B
(en)
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Electric induction furnace.
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CH21830A
(en)
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Pantographs on electric railways with underground power supply
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CH24173A
(en)
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Extension of the route for electric railways with underground power supply
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CH19118A
(en)
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Above-ground power supply device for electric railways
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CH23750A
(en)
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Electric switch
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CH21600A
(en)
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Partial conductor power supply device for electric railways
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AT36416B
(en)
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Electric induction furnace.
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AT52346B
(en)
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Electric induction furnace.
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CH21498A
(en)
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Electric heater
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CH21582A
(en)
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Electric direct current generator
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CH25198A
(en)
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Electric transformer
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CH20857A
(en)
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Electric switch with locking device
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DK5936C
(en)
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Electric Power Supply System for Railways.
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ES28015A1
(en)
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Improvement in electrical insulation.
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CH23232A
(en)
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Improved electrical power distribution system
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