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 JP5488176ApriorityCriticalpatent/JPS52137716A/ja
Priority to US05/791,748prioritypatent/US4140154A/en
Priority to DE2720017Aprioritypatent/DE2720017C2/de
Priority to IT83388/77Aprioritypatent/IT1117807B/it
Priority to GB20065/77Aprioritypatent/GB1579880A/en
Priority to CA278,439Aprioritypatent/CA1067840A/en
Priority to FR7714805Aprioritypatent/FR2351341A1/fr
Publication of JPS52137716ApublicationCriticalpatent/JPS52137716A/ja
Publication of JPS556798B2publicationCriticalpatent/JPS556798B2/ja