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Individual
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Individual
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Priority to ES175603ApriorityCriticalpatent/ES175603A1/en
Publication of ES175603A1publicationCriticalpatent/ES175603A1/en
ES175603A1946-10-251946-10-25
A PROCEDURE FOR THE MANUFACTURE OF A CHEMICAL PRODUCT TO CLEAN, BRIGHT AND POLISH ALL KINDS OF METALS AND OBJECTS
ExpiredES175603A1
(en)