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DK9120C
(en)
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Apparatus for recording, storing and reproducing sound by telegraphic means.
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DK18510C
(en)
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Apparatus for recording, reproducing and recording sound.
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DK5309C
(en)
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Apparatus for recording sound oscillations so that they could be reproduced.
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DK12892C
(en)
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Method and Apparatus for the production of gramophone records, phonograph rollers and similar sound reproducers.
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DK18548C
(en)
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Apparatus for recording and recording sound.
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DK19606C
(en)
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Apparatus for reproducing and transmitting sound.
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ES38737A1
(en)
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An improved apparatus for printing or reproducing.
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DK7386C
(en)
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Resonance Head for Apparatus for Recording or Reproducing Sound and Tones.
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DK13480C
(en)
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Apparatus for reproducing or recording sounds.
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DK10198C
(en)
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Apparatus for phonographs, speech machines and the like.
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DK12624C
(en)
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Apparatus for clamping horses and for simultaneously braking the carriage.
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DK9074C
(en)
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Phonograph Recorder.
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DK10141C
(en)
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Device for sounders for phonographs, gramophones and the like.
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DK11071C
(en)
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Method and Apparatus for Manufacturing Fishing Netes.
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DK10820C
(en)
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Apparatus for transmitting radiotelephonic signals.
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CA102825A
(en)
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Sound reproducing apparatus
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ES40599A1
(en)
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A new phonograph record.
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DK9694C
(en)
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Apparatus for Collecting and Returning Banknotes.
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ES40023A2
(en)
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An apparatus for the reproduction and amplification of sounds.
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DK7862C
(en)
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Device for recording and reproducing sounds and tones.
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DK7863C
(en)
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Device for recording and reproducing sounds and tones.
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DK23107C
(en)
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Apparatus for Phonographic Recording and Reproduction of Telephone Transmitted Messages.
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DK10024C
(en)
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Apparatus for generating Morse code.
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DK20777C
(en)
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Apparatus for mounting the sound box by gramophones, phonographs and similar apparatus.
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DK7059C
(en)
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Method and apparatus for making smooth heads on the glow net.
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