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DK1700C
(en)
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Field, Telephone and Telegraph Apparatus.
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DK1518C
(en)
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Typographic Telegraph Apparatus.
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DK3563C
(en)
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Procedure with associated telegraph apparatus on telephone lines.
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DK2653C
(en)
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Telegraph.
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ES22375A1
(en)
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An improved telephone transmitter.
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ES23094A1
(en)
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Improvements in telephone sets.
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DK6526C
(en)
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Setting device for Telegraph and Telephone Stations.
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DK1733C
(en)
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Device for Type Telegraph Devices.
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ES25580A1
(en)
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An autocopier and electro-chemical telegraph.
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DK10167C
(en)
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Device for Wireless Telephony and Telegraphy.
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DK1789C
(en)
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Electric Alarm, Alarm and Control Apparatus.
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CH21496A
(en)
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Safety device on low-voltage systems, such as B. Telephone and Telegraph
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ES26003A1
(en)
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Improvements in telegraphic devices.
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DK4095C
(en)
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Typographic Telegraph.
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DK6508C
(en)
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Pile for Telegraph and Telephone Cables.
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ES22258A1
(en)
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An apparatus, boat-saving floats.
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DK5954C
(en)
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Apparatus for Telegraphy and Telephony Using Non-Insulated Submarine Cables.
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DK10714C
(en)
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Device for Wireless Telephony and Telegraphy.
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DK2710C
(en)
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Devices in telegraph apparatus without wire.
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ES23412A1
(en)
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An apparatus titled "Terebrátor".
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DK1941C
(en)
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Station reporting device.
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CH24076A
(en)
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Cooling, resp. Ventilation apparatus
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DK2796C
(en)
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Writing telegraph device.
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DK3007C
(en)
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Typographic Telegraph.
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DK3941C
(en)
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Carbide and acetylene conductor that counteracts effervescence in acetylene development devices.
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