GB469395A
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Improvements in or relating to a process for the lowering of the solidification point of bituminous hydrocarbon oils
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US1931355A
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Process of treating furs
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GB356878A
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Improvements in or relating to textiles
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US2130150A
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Process for the treatment of textiles
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GB340651A
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Improved manufacture of esters of cellulose
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US1891829A
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Process of highly polymerizing cellulose acetate and the product thereof
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US1633948A
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Producing lead compounds of chromic acids
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US1536618A
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Process of treating lead compounds
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US1536619A
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Process for the recovery of zinc compounds from zinc-chloride solutions
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GB218972A
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Process for obtaining products suitable for metallurgical treatment from zinc chloride solutions
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GB227660A
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A process for the separation of lead and zinc in roasted compound ores
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GB222821A
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A process for the dechlorination of lead products containing lead oxychloride
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GB227301A
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Improvements in or relating to the extraction of roasted zinciferous ores or metallurgical products
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GB187195A
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Improvements relating to the recovery of lead compounds
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