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Priority to JP2113385UpriorityCriticalpatent/JPS61136916U/ja
Priority to GB08602974Aprioritypatent/GB2171446A/en
Priority to DE19863604535prioritypatent/DE3604535A1/de
Priority to IT8619420Aprioritypatent/IT1204799B/it
Publication of JPS61136916UpublicationCriticalpatent/JPS61136916U/ja
