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 JP2169671UpriorityCriticalpatent/JPS4717686U/ja
Priority to US231485Aprioritypatent/US3861488A/en
Priority to CA136,568Aprioritypatent/CA1005877A/en
Publication of JPS4717686UpublicationCriticalpatent/JPS4717686U/ja