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.)
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Filing date
Publication date
Application filedfiledCritical
Priority to JP1977124696UpriorityCriticalpatent/JPS5822171Y2/ja
Priority to US05/942,404prioritypatent/US4206982A/en
Priority to DE2840237Aprioritypatent/DE2840237B2/de
Publication of JPS5451544UpublicationCriticalpatent/JPS5451544U/ja
Application grantedgrantedCritical
Publication of JPS5822171Y2publicationCriticalpatent/JPS5822171Y2/ja
