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GB451386A
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Improvement in a device for shuffling and dealing playing cards
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GB434648A
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Apparatus for treating gums and other parts of the cavity of the mouth
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Method and means for translating sounl
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Recording and reproducing system
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Automatic telephone system
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Automatic electric switching system
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Highway traffic control system
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Automatic switching system
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Electromechanical telephone system
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Automatic switching
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