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DK4220C
(en)
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Procedure for Controlling a Cultivated Wire in an Unmelted Electric Incandescent Lamp.
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DK3693C
(en)
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Method for Manufacturing Electrically Conductive Lighting Fixtures.
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DK3727C
(en)
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Procedure for the manufacture of filaments for electric lamps.
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DK3979C
(en)
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Method for Generating Electric Light.
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DK3638C
(en)
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Spring base for electric incandescent lamps.
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ES28548A3
(en)
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An electric incandescent lighting procedure.
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DK4269C
(en)
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Regulating current switch for electric incandescent lamps with two carbon wires.
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ES28214A3
(en)
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Improvements in electric incandescent lamps.
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DK4251C
(en)
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Device by Conductors for electric incandescent lamps.
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ES32961A1
(en)
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A dimmer for electric arc lamps.
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ES27382A2
(en)
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Improvements in electric lamps.
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DK4031C
(en)
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Electric Bulb.
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DK3767C
(en)
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Electric Bulb.
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CH24380A
(en)
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Chandelier-reflector for incandescent electric lamps
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FI1417A
(en)
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Electric light bulb
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CH29104A
(en)
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Electric lamp
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DK4376C
(en)
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Burner for spirit incandescent lamps without wicks.
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DK6735C
(en)
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Method of Manufacturing an Electric Lamp.
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AT23585B
(en)
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Control device for AC arc lamps.
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ES27410A1
(en)
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An electric incandescent lamp with a movable base.
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CH33509A
(en)
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Electric arc lamp
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DK1890C
(en)
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Control device for electric arc lamps.
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DK3846C
(en)
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Procedure for Manufacturing Heaters for Heating Incandescent Conductors of Second Order Conductors
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DK4034C
(en)
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Procedure for Regenerating the Wire and Cleaning the Glass Bulb in Electric Incandescent Lamps.
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CH23679A
(en)
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Device for automatic control of the lighting voltage in electrical lighting systems with fluctuating operating voltage
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