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GB328485A
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Improvements in and relating to processes for coating aluminium, magnesium and theiralloys with oxides of manganese
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GB313901A
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Improvements in processes for producing coatings on metal articles
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GB314769A
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An improved process for coating metals
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GB275828A
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Process for producing metal coatings on articles of aluminium and aluminium alloys
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CA276496A
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Method and means for the conversion of electrical oscillations into acoustic oscillations
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CA268593A
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Variable condenser
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CA271627A
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Margarine production
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CA277199A
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Fat melting apparatus
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CA266139A
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Signalling light
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CA268953A
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Fluid measure
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CA279471A
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Telephone
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