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Improvements in or relating to the production of fluoroacetamide
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Improvements in the manufacture of artificial pumice
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Improvements in or relating to the production of abrasive tools
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Improvements in or relating to the manufacture of titanium pigments
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Improvements in or relating to the preparation of arylsulphonylthidureas
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Improvements in or relating to constructional material
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Article
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Improvements in or relating to the production of cellular synthetic resin compositions
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Improvements in or relating to the production of cellular synthetic resin compositions
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Improvements in and relating to the synthesis of organic compounds
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Improvements in or relating to the production of building construction units
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Improvements in sparking-plugs
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Improvements in radio-aerials
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Basically substituted kentones and process for their manufacture