DK6526C
(en)
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Setting device for Telegraph and Telephone Stations.
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DK6508C
(en)
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Pile for Telegraph and Telephone Cables.
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DK7171C
(en)
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Telephone connection device.
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DK10167C
(en)
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Device 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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DK7039C
(en)
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Automatic telephone setting device.
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DK5850C
(en)
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Adjustable Speaker for Telephone Devices.
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DK7010C
(en)
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Interrupt device for Pair Phones.
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ES34813A1
(en)
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An announcing device.
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DK14824C
(en)
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Telephone and Telegraph Feedback Device.
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AT25883B
(en)
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Quadruplex telegraph.
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DK10739C
(en)
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Telephone Dialing Device.
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ES34399A1
(en)
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Improvements in telephone repeaters.
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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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DK5922C
(en)
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Calling device for automatically operating Telephone Systems.
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DK6962C
(en)
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Pushbutton for combined Signal and Telephone cables.
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DK9914C
(en)
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Device for wireless signaling.
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DK9298C
(en)
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Wireless Telegraphy Device.
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AT24623B
(en)
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Telephone relay.
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DK6709C
(en)
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Device for Sealing Compressed Baths.
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CH41340A
(en)
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Self-collecting telephone station
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DK6813C
(en)
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Electromagnetic device for Telegraphs, Electric Clocks and the like.
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DK11275C
(en)
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Receiving device for wireless Telegraphy.
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DK6943C
(en)
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Receiver for wireless Telegraphy.
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