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Priority claimed from DE1899106688Dexternal-prioritypatent/DE106688C/de
Priority claimed from DE1899111752Dexternal-prioritypatent/DE111752C/de
Application filed by Albert KnuettelfiledCriticalAlbert Knuettel
Application grantedgrantedCritical
Publication of AT6307BpublicationCriticalpatent/AT6307B/de