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DK9336C
(en)
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Metal filament for electric incandescent 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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DK10200C
(en)
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Spring support for metal incandescent wire in electric incandescent lamps.
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DK12604C
(en)
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Device for metal wire incandescent lamps.
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FR393888A
(en)
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Metal filaments for electric incandescent 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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ES40458A1
(en)
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An improved process for the manufacture of filaments for electric incandescent lamps.
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DK10559C
(en)
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Electric Incandescent Lamp with Supported Metal Incandescent Wire.
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ES45967A1
(en)
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Volfran metal fabrication process for volfran filament electric incandescent lamps.
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CH40932A
(en)
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Electric light bulb with U-shaped bent, supported metal threads
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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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DK12198C
(en)
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Procedure for preventing the fusing of metal wires in electric filament lamps.
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DK11916C
(en)
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Incandescent lamp with an emission-sensitive filament, preferably a metal incandescent wire.
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DK10608C
(en)
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Electric incandescent lamp with U- or V-shaped, supported metal wire.
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DK9785C
(en)
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Self-regulating electric Arc lamp with Incandescent.
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DK10246C
(en)
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Electric Arc Lamp.
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ES40459A1
(en)
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An improved process for the manufacture of filaments for incandescent lamps.
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FR376413A
(en)
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Filament for incandescent lamps
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CH40110A
(en)
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Filament for incandescent lamps
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ES37994A1
(en)
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A process for the manufacture of especially thin metallic wires 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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DK9816C
(en)
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Incandescent lamps for electric incandescent lamps and methods for their manufacture.
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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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CH41060A
(en)
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Metal filament light bulb
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CH44179A
(en)
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Metal filament light bulb
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