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 JP1987000520UpriorityCriticalpatent/JP2530333Y2/ja
Priority to KR2019870021312Uprioritypatent/KR900007774Y1/ko
Priority to US07/137,297prioritypatent/US4821623A/en
Publication of JPS63108857UpublicationCriticalpatent/JPS63108857U/ja
Application grantedgrantedCritical
Publication of JP2530333Y2publicationCriticalpatent/JP2530333Y2/ja