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.)
OKAMOTO TEKKO KK
Original Assignee
OKAMOTO TEKKO KK
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 OKAMOTO TEKKO KKfiledCriticalOKAMOTO TEKKO KK
Priority to JP9452975ApriorityCriticalpatent/JPS5218268A/ja
Publication of JPS5218268ApublicationCriticalpatent/JPS5218268A/ja
Publication of JPS5432993B2publicationCriticalpatent/JPS5432993B2/ja