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Priority to JP2036471ApriorityCriticalpatent/JPS5121188B1/ja
Priority to DE19722216436prioritypatent/DE2216436A1/de
Priority to IT8953272Aprioritypatent/IT960862B/it
Priority to GB1573872Aprioritypatent/GB1357303A/en
Priority to FR7211978Aprioritypatent/FR2132468B1/fr
Priority to US05/541,551prioritypatent/US3945813A/en
Publication of JPS5121188B1publicationCriticalpatent/JPS5121188B1/ja