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Multicylinder pump
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Method of manufacturing hydrogen sulphide gas
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Improvements in processes for the manufacture of artificial silk and other products
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Method of froducing alkali-metal sulphydrates
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Process for the recovery of ammonia and other valuable chemicals from waste denitration liquors
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Process for the recovery of ammonia and other valuable chemicals from waste denitration liquors
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Process for the manufacture of artificial silk and other products from cellulose esters
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Nitrating apparatus
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Artificial-silk-spinning machine
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Process of manufacturing artificial silk and other products from nitrocellulose
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Process of manufacturing artificial silk and other products from nitrocellulose
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