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Individual
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Individual
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Priority to ES106913ApriorityCriticalpatent/ES106913A1/en
Publication of ES106913A1publicationCriticalpatent/ES106913A1/en
ES106913A1928-03-171928-03-17
Procedure for the manufacture of pure rosin and other resinous products from plants or resinous woods.
ExpiredES106913A1
(en)