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Linear method of optically recording a video or other signal
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1978-07-28
Procede et dispositif de fabrication de bandes magnetiques
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1976-01-20
Video disc recording apparatus and methods
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1989-12-20
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1981-10-23
Procede et appareil pour prolonger la vie d'un tube a rayons cathodiques
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1975-04-01
Method of manufacturing a master designed for the reproduction of records readable optically by diffraction
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1950-05-02
Method of and means for distributing wear of linear electrodes in facsimile recorders embodying helical and linear electrodes
Keizer
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VideoDisc Mastering
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2001-02-13
調節器を具備する直流電流折出槽
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1992-12-14
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1975-02-04
Method for forming an edge-supported annular magnetic recording medium
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帯電除去機能を有する光学式記録再生装置
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1981-04-10
Ensemble d'une aiguille de restitution de videodisque et cartouche contenant cet ensemble
Sachtleben
1935
Characteristics of the Photophone light-modulating system
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JPS6396704A
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1988-04-27
垂直磁気記録再生装置
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1962-07-03
Stylus recording with superimposed high frequency excitation
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1913-03-11
Art of and apparatus for recording and reproducing sound.
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1887-11-08
Gramophone
Vermeulen
1938
The Philips-Miller method of recording sound
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1992-10-29
光ディスク用原盤およびその製造方法
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1934-03-13
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