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Priority claimed from DE19742411577external-prioritypatent/DE2411577A1/de
Application filed by Upat Max Langensiepen KgfiledCriticalUpat Max Langensiepen Kg
Publication of ATA288974ApublicationCriticalpatent/ATA288974A/de
Application grantedgrantedCritical
Publication of AT333469BpublicationCriticalpatent/AT333469B/de