DK10733C
(en)
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Procedure for Making Wires for 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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DK11231C
(en)
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Procedure for the manufacture of filament light for electric filament lamps.
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DK11065C
(en)
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Procedure for Manufacturing Lighting Gas.
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DK10550C
(en)
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Procedure for the manufacture of electric filament.
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DK8708C
(en)
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Gas incandescent lamp.
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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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DK10422C
(en)
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Downward-facing Gas Bulb.
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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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AT27656B
(en)
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Vibration-free gas incandescent lamp.
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ES42748A1
(en)
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A procedure for the manufacture of filaments for electric incandescent lamps.
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DK10573C
(en)
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Storm lamp.
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ES43491A1
(en)
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A new procedure for the manufacture of electric incandescent lamps.
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DK9336C
(en)
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Metal filament for electric incandescent lamps.
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DK10205C
(en)
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Procedure for Manufacturing Lighting Gas.
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DK9137C
(en)
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Burning down Gas incandescent lamp.
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CH38399A
(en)
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Incandescent reflector
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DK10962C
(en)
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Soot trap for 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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ES43428A1
(en)
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A procedure for the manufacture of incandescent sleeves.
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DK8440C
(en)
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Gas incandescent burner.
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DK11400C
(en)
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Procedure for Making Incandescent Light with Dowson or Generator Gas.
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FR381629A
(en)
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Socket for incandescent lamps
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CH38862A
(en)
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Socket for incandescent lamps
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