DK18464C
(en)
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Apparatus for transmitting electrical signs, in particular for cable telegraphy.
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DK18584C
(en)
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Apparatus for transmitting electrical signs, in particular for cable telegraphy.
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DK18599C
(en)
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Apparatus for receiving electrical signals, in particular by cable telegraphy.
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DK15195C
(en)
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Apparatus for Sending the Telegraph Signs by the Morse System.
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DK18719C
(en)
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Apparatus for Receiving Radio Telegraphic Signals.
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DK18934C
(en)
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Devices of electric type telegraph apparatus.
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DK17575C
(en)
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Apparatus for Receiving and Transforming Electric Waves.
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DK20056C
(en)
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Apparatus for Receiving Electrical Signals.
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DK32353C
(en)
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Cordless Telegraph or Directional Telephony Apparatus.
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DK12995C
(en)
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Apparatus for Starting and Stopping Electric Motors.
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DK16621C
(en)
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Electrical Apparatus for Advertising, Advertising, Signaling and the like by Day and Night.
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GB191322146A
(en)
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An Improved System and Apparatus for High Speed Telegraphy.
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DK19643C
(en)
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Apparatus for Making Butter.
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DK21785C
(en)
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Apparatus for Testing Electrical Wire Connections.
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DK13843C
(en)
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Device for Telegraphic Transmission Sets.
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DK29947C
(en)
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Method and Apparatus for amplifying electrical current, voltage or energy changes.
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DK19228C
(en)
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Apparatus for terminating an electric current at temperature rise.
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DK14645C
(en)
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Apparatus for electrical Influence of electrical, in particular telegraphic apparatus and the like at a distance from the place of work.
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DK17689C
(en)
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Apparatus for Performing Electrosmotic Separation.
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DK19316C
(en)
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Telegraph device.
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DK20413C
(en)
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Apparatus for Utilizing Signal Streams for Telegraphic, Radio Telegraphic or Other Use.
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ES65299A1
(en)
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An apparatus for converting or transforming electrical currents.
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DK18072C
(en)
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Telegraph system for simultaneous Telegraphy between several Stations.
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DK14238C
(en)
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Electrolytic Apparatus for Meters, Switches and Other Apparatus.
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DK17693C
(en)
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Apparatus for Promoting Advertising.
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