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Application filed by Isovolta Oesterreichische Isolierstoffwerke AktiengesellschaftfiledCriticalIsovolta Oesterreichische Isolierstoffwerke Aktiengesellschaft
Priority claimed from EP82890028Aexternal-prioritypatent/EP0059703B1/de
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Publication of ATE11015T1publicationCriticalpatent/ATE11015T1/de