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.)
Japan Steel Works Ltd
Nissha Printing Co Ltd
Original Assignee
Japan Steel Works Ltd
Nissha Printing 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 Japan Steel Works Ltd, Nissha Printing Co LtdfiledCriticalJapan Steel Works Ltd
Priority to JP11288183ApriorityCriticalpatent/JPS606500A/ja
Publication of JPS606500ApublicationCriticalpatent/JPS606500A/ja
Publication of JPS6158318B2publicationCriticalpatent/JPS6158318B2/ja