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Process for recording and playback of sound tracks by photographic or optical means
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Gramophone record sleeve
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Improvements in toy constructional elements
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Improvements in toy constructional elements
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Improvements relating to washing machines
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Improvements in supporting arrangements
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Improvements in or relating to washing machines
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Improvements in arrangements for driving programme timing mechanisms in automatic washing machines
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On-load transformer tap changer
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Compensation of unbalance in centrifugal machines
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Compensation of unbalance in rotary machines
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Washing machines
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Electric motor reversing system
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