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 JP17322782UpriorityCriticalpatent/JPS5976451U/ja
Priority to US06/551,608prioritypatent/US4668001A/en
Publication of JPS5976451UpublicationCriticalpatent/JPS5976451U/ja
Priority to US07/039,108prioritypatent/US4781234A/en
Application grantedgrantedCritical
Publication of JPH0114528Y2publicationCriticalpatent/JPH0114528Y2/ja