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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Application filedfiledCritical
Priority to JP1092974UpriorityCriticalpatent/JPS5434587Y2/ja
Priority to US519211Aprioritypatent/US3898598A/en
Priority to DE19752502424prioritypatent/DE2502424A1/de
Publication of JPS50102331UpublicationCriticalpatent/JPS50102331U/ja
Application grantedgrantedCritical
Publication of JPS5434587Y2publicationCriticalpatent/JPS5434587Y2/ja
