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AU2003100723A4
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Fluoro cube -3d maze
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GB570441A
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Improvements in or relating to the electric heating of liquids
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GB430903A
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Combined cash plate and advertising devices
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GB400700A
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Improvements in and relating to electrical water heaters
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GB397259A
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Improvements in electrical water heaters
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US1926252A
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Means for the reduction or the elimination of the deposit of scale on heating elements of water heaters
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GB361007A
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A means for the reduction or elimination of the deposit of scale on the heating elements of water heaters
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GB318950A
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Improvements in electro-magnetic devices
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GB291494A
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Improvements in electro-magnetic devices
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