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Priority to JP1986137944UpriorityCriticalpatent/JPH054254Y2/ja
Priority to US07/079,690prioritypatent/US4792780A/en
Priority to DE19873730439prioritypatent/DE3730439A1/de
Publication of JPS6344405UpublicationCriticalpatent/JPS6344405U/ja
Application grantedgrantedCritical
Publication of JPH054254Y2publicationCriticalpatent/JPH054254Y2/ja