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Priority to BE757717DpriorityCriticalpatent/BE757717A/xx
Application filedfiledCritical
Priority to JP595670Aprioritypatent/JPS4832307B1/ja
Priority to DE19702050771prioritypatent/DE2050771A1/de
Priority to GB4971870Aprioritypatent/GB1325550A/en
Priority to CH1553470Aprioritypatent/CH562815A5/de
Publication of JPS4832307B1publicationCriticalpatent/JPS4832307B1/ja