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DK2471C
(en)
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Contact device for electrical paths with underground power supply and part conductor operation.
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CH20227A
(en)
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Actuating device for the circuit breaker in electric railways with underground power supply and mechanical partial conductor operation
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DK2431C
(en)
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Power transfer device for electric Railways with underground Power supply.
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CH17395A
(en)
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Contact device for electric railways with underground power supply and partial conductor operation
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DK1631C
(en)
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Power supply device for electric tracks.
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CH19669A
(en)
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Electric railroad with contact bolt operation with underground power supply
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DK3650C
(en)
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Power supply for electric Lanes with mechanically inserted Subconductors.
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DK2118C
(en)
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Humidity unaffected Power supply device for electric tracks with underground Power supply.
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DK371C
(en)
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Contact device for electrical Lanes with underground Power supply and shared Wiring system.
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DK3624C
(en)
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Electrical Contact Device with Screw.
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CH20949A
(en)
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Power connection device on independent electrical clocks
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DK2462C
(en)
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Underground Power supply device for electric Railways (Tramways).
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CH16720A
(en)
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Waterproof switching device for electrical railways with underground power lines
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ES31327A1
(en)
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Improvements in electrical current devices.
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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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DK965C
(en)
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Partially isolated Power supply device for electric Lanes with underground Power supply.
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ES25114A1
(en)
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Improvements in direct current electrical machines.
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CH28861A
(en)
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Contact roller current collector for electrical railways with above-ground power supply
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ES24712A2
(en)
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A contact device for electric trams with underground current and operating with split conductor.
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GB190000489A
(en)
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Improvements in Devices for Locating Earth Contacts on Electric Circuits.
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ES27721A1
(en)
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Improvements in conductive devices and contacts for incandescent electric lamps.
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CH19974A
(en)
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Tapping device on electric ovens
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ES28015A1
(en)
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Improvement in electrical insulation.
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CH17067A
(en)
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Power supply device for electric railways
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DK6190C
(en)
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Underground Power supply device for electric tracks with waterproof closed duct and by Motor driven Contact trolley.
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