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DK9437C
(en)
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Device for Receivers for Wireless Signal Transmission.
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DK10204C
(en)
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Device for Receivers for Wireless Telegraphy.
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DK9438C
(en)
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Device for Receivers for Signals by Wireless Telegraphy.
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DK9217C
(en)
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Receiver for wireless Telegraphy.
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DK9439C
(en)
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Device for signaling by wireless Telegraphy.
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DK9573C
(en)
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Device for signaling by wireless Telegraphy.
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DK9216C
(en)
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Transmitter for Wireless Telegraphy.
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DK9957C
(en)
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Transmitter for Wireless Telegraphy.
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DK9645C
(en)
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Device by Telegraphs.
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DK9297C
(en)
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Receiver for Spark Telegraphs.
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DK9518C
(en)
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Transmission device for Multiplex Telegraphy.
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DK9298C
(en)
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Wireless Telegraphy Device.
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FR377096A
(en)
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Transmission device
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DK10262C
(en)
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Device for Wireless Transmission of Sound Waves.
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DK7670C
(en)
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Device for Transmitter Devices for Wireless Telegraphy.
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DK10774C
(en)
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Device for Receiving Devices for Wireless Telegraphy.
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DK10261C
(en)
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Devices for Sending or Receiving Signals.
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FR385823A
(en)
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Transmission Mechanism
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DK7944C
(en)
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Receiver by wireless signal transmission.
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FR389242A
(en)
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Small phone receiver
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ES37290A1
(en)
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An irreversible maneuvering device.
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DK10313C
(en)
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Device by Flødsyrnekar.
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DK8734C
(en)
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Wireless Telegraphy Device.
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DK9392C
(en)
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Drain device for Tintuber.
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DK10213C
(en)
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Transmitter for Telephony.
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