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Application filed by Josef Matys, Karel MajfiledCriticalJosef Matys
Priority to CS789975ApriorityCriticalpatent/CS191444B1/cs
Publication of CS191444B1publicationCriticalpatent/CS191444B1/cs
CS789975A1975-11-211975-11-21Trimming punch for making the blanks from the magnetic record carrier for measuring the magnetic properties
CS191444B1
(en)