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.)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP6348377ApriorityCriticalpatent/JPS53148379A/ja
Priority to US05/909,702prioritypatent/US4169247A/en
Priority to CA304,332Aprioritypatent/CA1108251A/en
Publication of JPS53148379ApublicationCriticalpatent/JPS53148379A/ja
Publication of JPS5722442B2publicationCriticalpatent/JPS5722442B2/ja