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DK7403C
(en)
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Evaporator for liquid incandescent lamps with downward-facing incandescent bulb.
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DK7366C
(en)
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Ignition device for liquid incandescent lamps with downwardly directed incandescent body.
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DK7819C
(en)
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Gas incandescent light bulb.
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ES34793A1
(en)
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The manufacture of incandescent lamps.
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ES34189A3
(en)
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Improvements in the manufacture of incandescent lamps.
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DK7560C
(en)
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Device with downward-facing incandescent burners.
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DK7069C
(en)
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Gas incandescent lamp.
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US843281A
(en)
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Lamp-socket for incandescent lamps.
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DK10125C
(en)
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Gas incandescent lamp for Lighting with Scattered Light.
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DK14962C
(en)
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Spirit lamp with downward-facing incandescent burner.
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DK5950C
(en)
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Bulb lamp.
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CH34180A
(en)
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Device for increasing the luminosity of incandescent incandescent lamps
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DK7034C
(en)
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Lamp glass.
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CH32914A
(en)
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Gas incandescent lamp with bumper device
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DK11540C
(en)
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Gas incandescent lamp with downward-facing burner.
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ES36334A1
(en)
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An inverted burner incandescent gas lamp.
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DK7675C
(en)
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Bulb for liquid fuel.
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DK5446C
(en)
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Gas incandescent lamp.
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DK5663C
(en)
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Base for Incandescent lamps.
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DK7233C
(en)
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Heat or Incandescent Burner for Liquid Fuels.
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CH33734A
(en)
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Gas light bulb
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DK9394C
(en)
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Procedure for the manufacture of incandescent bulbs with high brightness and intensity.
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DK18955C
(en)
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Suspension device for the filament in down-burning gas incandescent lamps.
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DK7273C
(en)
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Blue burner for lighting or heating purposes.
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DK7686C
(en)
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Procedure for the production of so-called cold light.
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