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Application filed by Dietrich RannerfiledCriticalDietrich Ranner
Priority to AT325967ApriorityCriticalpatent/AT270077B/de
Priority to DE19671557342prioritypatent/DE1557342C/de
Priority to CH663067Aprioritypatent/CH450644A/de
Priority to GB22755/67Aprioritypatent/GB1181688A/en
Application grantedgrantedCritical
Publication of AT270077BpublicationCriticalpatent/AT270077B/de