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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon 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 Dai Nippon Printing Co LtdfiledCriticalDai Nippon Printing Co Ltd
Priority to JP14690775ApriorityCriticalpatent/JPS5531755B2/ja
Publication of JPS5185809ApublicationCriticalpatent/JPS5185809A/ja
Publication of JPS5531755B2publicationCriticalpatent/JPS5531755B2/ja