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DK20323C
(en)
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Electric Lamp with Glowing Gases.
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DK21067C
(en)
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Electric Lamp with Glowing Gases.
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DK20559C
(en)
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Electric Lamp with luminous Gases.
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ES58235A1
(en)
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Improvements in electric gas lamps.
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|
ES58236A1
(en)
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Improvements in electric gas lamps.
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|
ES58237A1
(en)
|
|
Improvements in electric gas lamps.
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|
ES58735A1
(en)
|
|
Improvements in electric gas lamps.
|
|
FR481047A
(en)
|
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Improvements to incandescent electric lamps
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|
CH73035A
(en)
|
|
Spirit incandescent burner
|
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DK19358C
(en)
|
|
Electric Bulb Socket with Switch.
|
|
DK20261C
(en)
|
|
Electric Candle Lamp.
|
|
CH68402A
(en)
|
|
Electric gas lamp
|
|
CH70341A
(en)
|
|
Electric gas lamp
|
|
CH72219A
(en)
|
|
Arc lamp with enclosed arc
|
|
CH74583A
(en)
|
|
Arc lamp with enclosed arc
|
|
CH71743A
(en)
|
|
Electric flashlight
|
|
ES61227A1
(en)
|
|
Improvements in electric incandescent arc lamps.
|
|
ES59062A1
(en)
|
|
An incandescent electric lamp filled with gas.
|
|
ES52980A1
(en)
|
|
Improvements in incandescent electric lamps.
|
|
DK20975C
(en)
|
|
Electric lamp with incandescent gases and procedure for its manufacture.
|
|
ES58161A3
(en)
|
|
Improvements in electric incandescent lamps.
|
|
FR478191A
(en)
|
|
Lamp
|
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CH71978A
(en)
|
|
Formogenic lamp
|
|
CH69454A
(en)
|
|
Acetylene lamp
|
|
CH67865A
(en)
|
|
Gas cooker
|