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DK10671C
(en)
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Device for Senders for Wireless Telephony and Telegraphy.
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DK10838C
(en)
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Device for Senders for Wireless Telephony and Telegraphy.
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DK10714C
(en)
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Device for Wireless Telephony and Telegraphy.
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DK10167C
(en)
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Device for Wireless Telephony and Telegraphy.
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DK11615C
(en)
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Wireless Telegraphy Device.
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DK10774C
(en)
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Device for Receiving Devices for Wireless Telegraphy.
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GB190807028A
(en)
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Improvements in Apparatus for Alternative Wireless Telegraphy and Telephony.
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DK11275C
(en)
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Receiving device for wireless Telegraphy.
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DK10506C
(en)
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Device for Telephone Senders.
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DK7633C
(en)
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Combined Microphone and Telephone.
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DK10894C
(en)
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Device for Receivers and Senders for Submarine Signaling.
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DK9414C
(en)
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Sender for Wireless Telegraphy.
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ES42562A1
(en)
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Improvements in telegraph devices.
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DK14824C
(en)
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Telephone and Telegraph Feedback Device.
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DK10629C
(en)
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Electrical Telegraphy Device.
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DK11236C
(en)
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Transmitter for Wireless Telegraphy.
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DK10518C
(en)
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Variable Liquid Resistance for Use in Wireless Telegraphy, Telephoning and the like.
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DK9298C
(en)
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Wireless Telegraphy Device.
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DK11508C
(en)
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Disinfection device for Telephone Devices.
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AT52380B
(en)
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Mast for radio telegraphy, signaling and similar purposes.
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DK9383C
(en)
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Device for self-rolling registers for telephones and the like.
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ES39928A3
(en)
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A telephone and telegraph device.
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AT68453B
(en)
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Telephone relay.
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DK11264C
(en)
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Handset for Sagittarius.
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DK10739C
(en)
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Telephone Dialing Device.
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