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Priority to JP3019388UpriorityCriticalpatent/JPH051699Y2/ja
Priority to CA 591667prioritypatent/CA1323979C/en
Priority to GB8904192Aprioritypatent/GB2216066B/en
Priority to DE19893905627prioritypatent/DE3905627A1/de
Publication of JPH01133530UpublicationCriticalpatent/JPH01133530U/ja
Application grantedgrantedCritical
Publication of JPH051699Y2publicationCriticalpatent/JPH051699Y2/ja