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Priority to JP1987057079UpriorityCriticalpatent/JPH053744Y2/ja
Priority to US07/166,885prioritypatent/US4896551A/en
Priority to DE3809191Aprioritypatent/DE3809191C2/de
Publication of JPS63164568UpublicationCriticalpatent/JPS63164568U/ja
Application grantedgrantedCritical
Publication of JPH053744Y2publicationCriticalpatent/JPH053744Y2/ja
