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Improvements in or relating to suction nozzles
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GB768088A
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Improvements in or relating to sound reproducing or recording apparatus
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GB767439A
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Improvements in or relating to magnetic recording and reproducing apparatus
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Improvements in or relating to coupling devices for bowden type cables
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Improvements in or relating to electric visual indicator devices
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US2799732A
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Magnetic recording apparatus
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Improvements in or relating to mechanically operated floor treatment machines
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Improvements in or relating to mechanically operated floor treatment machines
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GB732997A
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Improvements in or relating to mechanically operated floor treatment machines
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GB739724A
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Improvements in or relating to magnetic recording apparatus
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GB714748A
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Improvements in or relating to electric recording and reproducing apparatus
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