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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuroki Kogyosho Co Ltd
Original Assignee
Kuroki Kogyosho Co Ltd
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 filed by Kuroki Kogyosho Co LtdfiledCriticalKuroki Kogyosho Co Ltd
Priority to JP5481581ApriorityCriticalpatent/JPS57169067A/ja
Publication of JPS57169067ApublicationCriticalpatent/JPS57169067A/ja
Publication of JPS649386B2publicationCriticalpatent/JPS649386B2/ja