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DK3029C
(en)
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Contact device for electrical paths with underground power supply and part conductor operation.
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DK3650C
(en)
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Power supply for electric Lanes with mechanically inserted Subconductors.
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DK1631C
(en)
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Power supply device for electric tracks.
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DK4134C
(en)
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Underground Power Supply for Electrical Lanes with Wiring Departments.
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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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DK2431C
(en)
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Power transfer device for electric Railways with underground Power supply.
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DK3624C
(en)
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Electrical Contact Device with Screw.
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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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ES31327A1
(en)
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Improvements in electrical current devices.
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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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ES28015A1
(en)
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Improvement in electrical insulation.
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GB190000489A
(en)
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Improvements in Devices for Locating Earth Contacts on Electric Circuits.
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CH21600A
(en)
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Partial conductor power supply device for electric railways
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ES25549A1
(en)
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Improvements in electrical heating devices.
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GB190301980A
(en)
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Improvements in Auxiliary Contact Devices for Electrical Switch Apparatus.
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CH16720A
(en)
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Waterproof switching device for electrical railways with underground power lines
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DK2462C
(en)
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Underground Power supply device for electric Railways (Tramways).
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DK3333C
(en)
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Coal contact for electric reversing devices and the like.
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CH21044A
(en)
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Line connection device on carbon electrodes for electric melting furnaces
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ES27861A1
(en)
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Improvements in electrical regulators.
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ES25988A1
(en)
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Improvements made in regulating devices for electric current circuits.
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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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GB190308010A
(en)
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Improvements in and relating to an Electric Push Contact Device.
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ES32508A1
(en)
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Improvements in electrodes for electrical procedures.
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DK4083C
(en)
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Pantographs for electric tracks.
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