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Priority claimed from CH787478Aexternal-prioritypatent/CH630550A5/de
Priority claimed from AT158179Aexternal-prioritypatent/AT361529B/de
Application filed by Meier & WettsteinfiledCriticalMeier & Wettstein
Priority to AT205680ApriorityCriticalpatent/AT366436B/de
Publication of ATA205680ApublicationCriticalpatent/ATA205680A/de
Application grantedgrantedCritical
Publication of AT366436BpublicationCriticalpatent/AT366436B/de