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DK10261C
(en)
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Devices for Sending or Receiving Signals.
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FR394043A
(en)
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Telegraph system
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DK9297C
(en)
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Receiver for Spark Telegraphs.
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DK10213C
(en)
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Transmitter for Telephony.
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DK10262C
(en)
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Device for Wireless Transmission of Sound Waves.
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FR377966A
(en)
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Telephone transmitter
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FR389133A
(en)
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Support for telephone receiver
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FR382438A
(en)
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Telephone receiver
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FR377096A
(en)
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Transmission device
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CH39532A
(en)
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Telephone system
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DK9550C
(en)
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Procedure for Making Tea - Free Tea.
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DK10049C
(en)
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Device for Making Ice Cream.
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DK9590C
(en)
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Akshæver for Mejemaskiner.
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DK7965C
(en)
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Device for preventing the formation of membranes on milk.
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DK9187C
(en)
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Pressure telegraph device.
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DK10163C
(en)
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Kæpstok til Arbejdsvogne.
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DK8810C
(en)
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Device for Amplification of Telephone Streams.
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FR374988A
(en)
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Telephone system
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DK9645C
(en)
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Device by Telegraphs.
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DK9438C
(en)
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Device for Receivers for Signals by Wireless Telegraphy.
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DK9945C
(en)
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Self-sealing Adjustment Tap.
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FR377472A
(en)
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Telephone transmitter
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DK9637C
(en)
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Field theodolite.
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FR370115A
(en)
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Receiver for telegraphic transmissions
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DK9481C
(en)
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Procedure for the Preparation of a Fecal Fertilizer.
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