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Individual
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Individual
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Priority to ES12373ApriorityCriticalpatent/ES12373A1/en
Publication of ES12373A1publicationCriticalpatent/ES12373A1/en
Improvements in apparatus for the manufacture of metallic or composite pigments and in the production of lead and zinc pigments or compounds and combinations of these by said apparatus.
A procedure for rectifying, that is, disinfecting, decolorizing and clarifying the oils from the dry distillation of rosin resin, commonly known as resin oils.