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DK6735C
(en)
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Method of Manufacturing an Electric Lamp.
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FR343943A
(en)
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Electric lamps
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DK3727C
(en)
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Procedure for the manufacture of filaments for electric lamps.
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DK7077C
(en)
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Procedure for Manufacturing Lighting Gas.
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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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DK9048C
(en)
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Procedure for the manufacture of filament lamps 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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DK6822C
(en)
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Procedure for Manufacturing Building Blocks.
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CH30887A
(en)
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Theater
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CH27102A
(en)
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lamp
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DK7009C
(en)
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Device for Quiet Discharge of Electricity.
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DK6642C
(en)
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Device for the production of oscillating electric currents.
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FI2143A
(en)
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Photogen lamp
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DK7037C
(en)
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Method of Making Cement.
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ES35190A1
(en)
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An electric tool-impeller.
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FR334224A
(en)
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Advanced lamp burner
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FR351285A
(en)
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Candelabra
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DK3693C
(en)
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Method for Manufacturing Electrically Conductive Lighting Fixtures.
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DK6919C
(en)
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Method of Making an Explosive.
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DK3895C
(en)
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Procedure for Manufacturing Lithotype Types.
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AT23514B
(en)
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Arc lamp.
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AT23210B
(en)
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Arc lamp.
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CH32493A
(en)
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Electric steam lamp
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CH30007A
(en)
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Candlestick
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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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