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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Priority to JP49056279ApriorityCriticalpatent/JPS50147939A/ja
Priority to US05/575,002prioritypatent/US4047194A/en
Priority to DE2560172Aprioritypatent/DE2560172C2/de
Priority to DE2520449Aprioritypatent/DE2520449B2/de
Publication of JPS50147939ApublicationCriticalpatent/JPS50147939A/ja
