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DK3127C
(en)
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Device for Telegraphy without Wire Using Ground Plates and Electric Spark Discharges.
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DK3250C
(en)
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Devices in telegraph apparatus without wire.
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DK4094C
(en)
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Procedure for Insulating Electrical Wires Using Cooling.
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DK4004C
(en)
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Devices in telegraph apparatus without wire.
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DK4158C
(en)
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Devices in telegraph apparatus without wire.
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CH20975A
(en)
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Lightning protection device
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DK3637C
(en)
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Devices for signaling apparatus and similar purposes.
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CH22459A
(en)
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Horn lightning arrester
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ES26981A1
(en)
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An electric matchbox.
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CH20184A
(en)
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Electrical switchgear
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CH48768A
(en)
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Device against dangers resulting from overvoltages in electrical networks
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ES26097A1
(en)
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Improvements in electrical radio-conductors.
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CH25397A
(en)
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Hairpin
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CH22416A
(en)
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Hairpin
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DK4079C
(en)
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Device for self-propelled protection devices for trams.
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ES25739A1
(en)
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An electrical procedure to accelerate explosions.
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CH21590A
(en)
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Printing telegraph device
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CA73255A
(en)
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Spacing device for wire fences
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DK3993C
(en)
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Device for Removing and Inserting the Insert Plates into Centrifuges.
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DK3301C
(en)
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Devices of electric measuring devices.
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DK5701C
(en)
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Device for devices for telegraphy without wire.
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DK4233C
(en)
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Protection device for Cattle.
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CH22377A
(en)
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Electrical fuse
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CH25198A
(en)
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Electric transformer
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DK3546C
(en)
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Posts for Horseshoes.
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