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GB499855A
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Improvements in or relating to the manufacture of hydraulic cement
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GB461117A
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Improvements in or relating to a process of recovering alumina from aluminous silicious material containing a substantial proportion of silica
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US1964685A
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Process of treating siliceous material and the manufacture of cement therefrom
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US1964760A
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Method of selecting dyes for treating goods to alter the colors thereof
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US1973407A
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Process of conditioning crystalline materials
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GB382366A
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Improvements in or relating to a process and apparatus for precipitating and separating alumina hydrate from solutions of alkali metal aluminates
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US1971354A
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Process of recovering alumina from aluminous silicious materials
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US1897534A
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Cutting apparatus
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US1841303A
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Connection for the ends of webs
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US1868499A
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Process of recovering alumina from silicious materials containing it
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GB360098A
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Improvements relating to testing of hypochlorite solutions to ascertain the strengththereof
|
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GB357224A
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Improvements in and relating to detergents and method of preparing the same
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US1873642A
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Process of recovering alumina from coal and its ashes
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US1874186A
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Process of making portland cement from coal ashes
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US1944848A
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Process of shaping & cooling hot liquid detergents
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US1932354A
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Melting furnace and method of constructing and operating same
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US1891609A
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Process of producing alumina from waste coal products
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US1891608A
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Process of producing alumina
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US1840445A
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Titration method and tablet therefor
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GB339355A
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Improvements in and relating to detergents and method of preparing the same
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