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Publication date
Application filedfiledCritical
Priority to JP16300388UpriorityCriticalpatent/JPH0314170Y2/ja
Priority to US07/444,240prioritypatent/US5026281A/en
Priority to CA002004900Aprioritypatent/CA2004900C/en
Priority to EP89122587Aprioritypatent/EP0376014A1/en
Priority to KR2019890018936Uprioritypatent/KR920008953Y1/ko
Publication of JPH0282320UpublicationCriticalpatent/JPH0282320U/ja
Application grantedgrantedCritical
Publication of JPH0314170Y2publicationCriticalpatent/JPH0314170Y2/ja