DK11875C
(en)
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Apparatus for automatic switching on and off of lighting devices.
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DK17847C
(en)
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Apparatus for automatic switching on and off of lighting devices.
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DK8163C
(en)
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Apparatus for Switching Lighting Apparatus on and off.
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DK12226C
(en)
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Apparatus for automatic On and Off Gas.
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DK8543C
(en)
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Apparatus for switching on and off gas lamps.
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DK13394C
(en)
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Device for devices for automatic switching on and off of lighting devices.
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DK12450C
(en)
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Clockwork device for automatic switching on and off of lamps or lamps.
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DK17668C
(en)
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Apparatus for periodic switching on and off of electric lamps.
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DK7070C
(en)
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Device for devices for automatic switching on and off of any number of gas lamps and the like.
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DK15474C
(en)
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Apparatus for periodic switching on and off of electric lamps.
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DK13950C
(en)
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Device for automatic switching on and off of electric lamps on automatic looms.
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DK8798C
(en)
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Method and device for electrochemical switching on and off of gas lamps.
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DK28909C
(en)
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Apparatus for automatically switching on and off gas burners, candelabra and other lighting devices at predetermined times.
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DK12303C
(en)
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Apparatus for switching on and off automatically gas lamps after a certain time.
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DK15436C
(en)
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Apparatus for switching on and off the gas burner at certain times.
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DK9850C
(en)
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Apparatus for Making Autotypic Negatives.
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DK12673C
(en)
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Apparatus for Mixing Playing Cards.
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DK8412C
(en)
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Method and Apparatus for Manufacturing Lighting Gas.
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DK10853C
(en)
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Device for Switching Gas Lights On and Off.
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DK12270C
(en)
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Apparatus for amplifying the intensity of weak currents.
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DK8471C
(en)
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Procedure and Apparatus for the Manufacture of Lighting and Cooking Gas.
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DK12813C
(en)
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Procedure and Apparatus for Purifying Used Lubricating Oil.
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DK12472C
(en)
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Apparatus for Purification of Kraftgas.
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DK9647C
(en)
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Procedure and Apparatus for Manufacturing Measures of Ropes.
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DK6229C
(en)
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Apparatus for climbing high chimneys and the like.
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