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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Publication date
Application filedfiledCritical
Priority to JP8135972UpriorityCriticalpatent/JPS5117938Y2/ja
Priority to US334731Aprioritypatent/US3883253A/en
Priority to DE2310573Aprioritypatent/DE2310573C3/de
Publication of JPS4939531UpublicationCriticalpatent/JPS4939531U/ja
Priority to US524673Aprioritypatent/US3892495A/en
Application grantedgrantedCritical
Publication of JPS5117938Y2publicationCriticalpatent/JPS5117938Y2/ja
