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Priority claimed from US06/054,780external-prioritypatent/US4258855A/en
Application filed by The Continental Group, Inc.filedCriticalThe Continental Group, Inc.
Priority claimed from EP19800301422external-prioritypatent/EP0019394B1/de
Application grantedgrantedCritical
Publication of ATE8483T1publicationCriticalpatent/ATE8483T1/de