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 JP3714074ApriorityCriticalpatent/JPS5548729B2/ja
Priority to US05/558,557prioritypatent/US3988596A/en
Priority to CA223,308Aprioritypatent/CA1047648A/en
Priority to DE19752513804prioritypatent/DE2513804A1/de
Publication of JPS50131440ApublicationCriticalpatent/JPS50131440A/ja
Publication of JPS5548729B2publicationCriticalpatent/JPS5548729B2/ja