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Priority claimed from US06/930,813external-prioritypatent/US4729505A/en
Application filed by Weyerhaeuser CofiledCriticalWeyerhaeuser Co
Priority claimed from EP87900498Aexternal-prioritypatent/EP0248081B1/de
Application grantedgrantedCritical
Publication of ATE55342T1publicationCriticalpatent/ATE55342T1/de