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Priority claimed from CH965380Aexternal-prioritypatent/CH632724A5/en
Application filed by Fritz NydeggerfiledCriticalFritz Nydegger
Publication of FI822867A0publicationCriticalpatent/FI822867A0/en
Publication of FI822867A7publicationCriticalpatent/FI822867A7/en
Publication of FI822867LpublicationCriticalpatent/FI822867L/en