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Priority claimed from CH828/88Aexternal-prioritypatent/CH675275A5/de
Priority claimed from CH110588Aexternal-prioritypatent/CH675670A5/fr
Application filed by Hawa AgfiledCriticalHawa Ag
Application grantedgrantedCritical
Publication of ATE72869T1publicationCriticalpatent/ATE72869T1/de