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Application filed by Inst Za Elektroniko In VakuumsfiledCriticalInst Za Elektroniko In Vakuums
Priority to FI108368ApriorityCriticalpatent/FI52257C/en
Application grantedgrantedCritical
Publication of FI52257BpublicationCriticalpatent/FI52257B/fi
Publication of FI52257CpublicationCriticalpatent/FI52257C/en