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Priority claimed from US06/135,326external-prioritypatent/US4356683A/en
Priority claimed from US06/135,356external-prioritypatent/US4356684A/en
Priority claimed from US06/135,353external-prioritypatent/US4356679A/en
Application filed by Aes Tech SystfiledCriticalAes Tech Syst
Priority claimed from EP81102331Aexternal-prioritypatent/EP0037100B1/de
Application grantedgrantedCritical
Publication of ATE14405T1publicationCriticalpatent/ATE14405T1/de