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Individual
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Individual
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Priority to ES74178ApriorityCriticalpatent/ES74178A1/en
Publication of ES74178A1publicationCriticalpatent/ES74178A1/en
ES74178A1920-06-221920-06-22
An improved procedure for the recovery or repair of colloidal or gelatinous materials from the liquids that contain them.
ExpiredES74178A1
(en)