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DK9048C
(en)
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Procedure for the manufacture of filament lamps for electric filament lamps.
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DK8957C
(en)
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Procedure for the manufacture of filament light for electric filament lamps.
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DK9282C
(en)
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Procedure for the manufacture of filament light for electric filament lamps.
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DK9371C
(en)
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Procedure for the manufacture of metal filament for electric filament lamps.
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DK11231C
(en)
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Procedure for the manufacture of filament light for electric filament lamps.
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DK10550C
(en)
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Procedure for the manufacture of electric filament.
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DK9026C
(en)
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Procedure for the production of mercury vapor lamps.
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ES39723A1
(en)
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You improve the filaments of incandescent electric lamps.
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DK10837C
(en)
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Procedure for the manufacture of tungsten wire for electric incandescent lamps.
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DK10733C
(en)
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Procedure for Making Wires for Incandescent Lamps.
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AT31959B
(en)
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Acetylene lamp.
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ES37685A1
(en)
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A procedure for the manufacture of wires for electric incandescent lamps.
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DK8492C
(en)
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Procedure for the manufacture of bell-shaped insulators.
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DK14320C
(en)
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Procedure for the manufacture of electric incandescent lamps.
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DK8708C
(en)
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Gas incandescent lamp.
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ES38416A1
(en)
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Mouré lamp.
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FI2605A
(en)
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Automatic lamps
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DK10145C
(en)
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Procedure for Connecting the filaments in electric filament lamps to the filaments.
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CH38085A
(en)
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Incandescent socket
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DK12551C
(en)
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Procedure for the manufacture of metal wire hangers for electric incandescent lamps.
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DK8141C
(en)
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Lamp glass.
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ES40458A1
(en)
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An improved process for the manufacture of filaments for electric incandescent lamps.
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DK10205C
(en)
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Procedure for Manufacturing Lighting Gas.
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DK7661C
(en)
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Procedure for Manufacturing Hulsten.
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FI2696A
(en)
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Oil-glowing lamp
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