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Application filed by Willi Becker, Ingenieurbüro GmbHfiledCriticalWilli Becker, Ingenieurbüro GmbH
Priority to IS2687ApriorityCriticalpatent/IS1211B6/is
Publication of IS2687A7publicationCriticalpatent/IS2687A7/is
Publication of IS1211B6publicationCriticalpatent/IS1211B6/is