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Priority to JP1987199094UpriorityCriticalpatent/JPH0542402Y2/ja
Priority to EP88306324Aprioritypatent/EP0299704B1/en
Priority to DE8888306324Tprioritypatent/DE3869250D1/de
Priority to US07/217,681prioritypatent/US4942481A/en
Publication of JPH01101202UpublicationCriticalpatent/JPH01101202U/ja
Application grantedgrantedCritical
Publication of JPH0542402Y2publicationCriticalpatent/JPH0542402Y2/ja