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Priority to JP1987158969UpriorityCriticalpatent/JPH0520593Y2/ja
Priority to DE3850929Tprioritypatent/DE3850929T2/de
Priority to US07/257,902prioritypatent/US5029680A/en
Priority to EP88117162Aprioritypatent/EP0312110B1/en
Publication of JPH0162936UpublicationCriticalpatent/JPH0162936U/ja
Application grantedgrantedCritical
Publication of JPH0520593Y2publicationCriticalpatent/JPH0520593Y2/ja
