Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP1986129715UpriorityCriticalpatent/JPH0536336Y2/ja
Priority to EP87101870Aprioritypatent/EP0237774B1/en
Priority to DE8787101870Tprioritypatent/DE3763706D1/de
Priority to CA000529637Aprioritypatent/CA1293129C/en
Priority to US07/014,656prioritypatent/US4848846A/en
Priority to KR1019870001237Aprioritypatent/KR900002019B1/ko
Publication of JPS6336221UpublicationCriticalpatent/JPS6336221U/ja
Application grantedgrantedCritical
Publication of JPH0536336Y2publicationCriticalpatent/JPH0536336Y2/ja