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Priority to JP1987004950UpriorityCriticalpatent/JPH0618374Y2/ja
Priority to EP88400096Aprioritypatent/EP0276185B1/en
Priority to DE3889552Tprioritypatent/DE3889552T2/de
Publication of JPS63113167UpublicationCriticalpatent/JPS63113167U/ja
Priority to US07/271,364prioritypatent/US4875069A/en
Application grantedgrantedCritical
Publication of JPH0618374Y2publicationCriticalpatent/JPH0618374Y2/ja