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GB1209155A
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Improvements in or relating to methods and apparatus for the manufacture of gramophone records
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GB1205623A
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Improvements in or relating to a method and apparatus for the manufacture of gramophone records
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DE1524776A1
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Method and device for the transmission of additional information on a magnetic recording
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GB961548A
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Improvements in or relating to gramophone record playing apparatus
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GB952070A
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Improvements in or relating to mounting means for stylus arms for use in pick-up heads for gramophone record playing apparatus
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GB942459A
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Improvements relating to apparatus for deriving pseudostereophonic signals
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DE1179730B
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Pickup for scanning stereo-phonically recorded records
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GB930611A
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Improvements in or relating to electromechanical transducers
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GB918081A
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Improvements in or relating to pick-up arms and mounting means therefor of gramophone record playing apparatus
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GB913721A
|
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Improvements in or relating to electro-mechanical transducers
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DE1109387B
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Pickups
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US2906133A
|
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Multi-speed drive mechanisms
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GB884819A
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Improvements in or relating to multi-speed drive mechanisms
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GB791224A
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Automatic stop for record changers
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DE1049118B
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Removable stacking axis for record changer
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GB795935A
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Gramophone pick-up needles
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GB768414A
|
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Improvements in and relating to gramophone needles
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GB759236A
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Improvements in or relating to loudspeakers
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ES218309A1
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An electrostatic speaker (Machine-translation by Google Translate, not legally binding)
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