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Priority claimed from US06/348,829external-prioritypatent/US4447383A/en
Priority claimed from US06/348,734external-prioritypatent/US4412964A/en
Priority claimed from US06/349,575external-prioritypatent/US4408972A/en
Application filed by Baker Perkins IncfiledCriticalBaker Perkins Inc
Priority claimed from EP83100941Aexternal-prioritypatent/EP0087014B1/de
Application grantedgrantedCritical
Publication of ATE22036T1publicationCriticalpatent/ATE22036T1/de