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Individual
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Individual
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Priority to ES76643ApriorityCriticalpatent/ES76643A1/es
Publication of ES76643A1publicationCriticalpatent/ES76643A1/es
ES76643A1920-12-311920-12-31Procedimiento para la obtención de masas de nitrocelulosa, tenaz e impermeables al agua, para objetos técnicos.
ExpiredES76643A1
(es)