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Individual
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Individual
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Priority to ES47390ApriorityCriticalpatent/ES47390A3/es
Publication of ES47390A3publicationCriticalpatent/ES47390A3/es
ES47390A1910-02-051910-02-05Un procedimiento para la fabricación de bolas de vidrio o cristal con filetes en el interior de su masa.
ExpiredES47390A3
(es)