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Priority claimed from US07/166,283external-prioritypatent/US4861427A/en
Application filed by Weyerhaeuser CofiledCriticalWeyerhaeuser Co
Priority claimed from EP19880107104external-prioritypatent/EP0289993B1/en
Application grantedgrantedCritical
Publication of ATE102551T1publicationCriticalpatent/ATE102551T1/en