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Application filedfiledCritical
Priority to JP6903088UpriorityCriticalpatent/JPH08769Y2/ja
Priority to US07/353,447prioritypatent/US4988850A/en
Priority to DE3916978Aprioritypatent/DE3916978A1/de
Publication of JPH01173955UpublicationCriticalpatent/JPH01173955U/ja
Application grantedgrantedCritical
Publication of JPH08769Y2publicationCriticalpatent/JPH08769Y2/ja
