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Priority claimed from US06/529,427external-prioritypatent/US4663918A/en
Priority claimed from US06/529,428external-prioritypatent/US4528804A/en
Application filed by Deere & CofiledCriticalDeere & Co
Priority claimed from EP19840110326external-prioritypatent/EP0136548B1/en
Application grantedgrantedCritical
Publication of ATE31863T1publicationCriticalpatent/ATE31863T1/en