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Priority claimed from US06/335,789external-prioritypatent/US4416685A/en
Priority claimed from US06/335,950external-prioritypatent/US4441914A/en
Priority claimed from US06/335,949external-prioritypatent/US4439227A/en
Application filed by Stauffer Chemical CofiledCriticalStauffer Chemical Co
Priority claimed from EP82306906Aexternal-prioritypatent/EP0084253B1/de
Application grantedgrantedCritical
Publication of ATE22521T1publicationCriticalpatent/ATE22521T1/de