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Filing date
Publication date
Application filedfiledCritical
Priority to JP12971486UpriorityCriticalpatent/JPH0317619Y2/ja
Priority to DE8787101870Tprioritypatent/DE3763706D1/de
Priority to EP87101870Aprioritypatent/EP0237774B1/en
Priority to CA000529637Aprioritypatent/CA1293129C/en
Priority to US07/014,656prioritypatent/US4848846A/en
Priority to KR1019870001237Aprioritypatent/KR900002019B1/ko
Publication of JPS6336220UpublicationCriticalpatent/JPS6336220U/ja
Application grantedgrantedCritical
Publication of JPH0317619Y2publicationCriticalpatent/JPH0317619Y2/ja
