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Individual
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Individual
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Priority to ES212097ApriorityCriticalpatent/ES212097A1/en
Publication of ES212097A1publicationCriticalpatent/ES212097A1/en
Improvements in the manufacture of washers characterized because they consist of subjecting the prefabricated washers to a double operation consisting of the grinding with individual and successive grinding wheel of the two opposite sides of each aforementioned washer. (Machine-translation by Google Translate, not legally binding)
ES212097A1953-11-101953-11-10Improvements in the manufacture of washers (Machine-translation by Google Translate, not legally binding)
ExpiredES212097A1
(en)