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Priority to JP1987101632UpriorityCriticalpatent/JPH066284Y2/ja
Priority to EP88108707Aprioritypatent/EP0297298B1/en
Priority to DE8888108707Tprioritypatent/DE3874024T2/de
Priority to US07/212,536prioritypatent/US4971595A/en
Publication of JPS646423UpublicationCriticalpatent/JPS646423U/ja
Application grantedgrantedCritical
Publication of JPH066284Y2publicationCriticalpatent/JPH066284Y2/ja
