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Priority to ES511842ApriorityCriticalpatent/ES8306964A1/en
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Publication of ES8306964A1publicationCriticalpatent/ES8306964A1/en
ES511842A1982-04-301982-04-30Improvements introduced in the mixing machines. (Machine-translation by Google Translate, not legally binding)
ExpiredES8306964A1
(en)