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.)
Expired
Application number
CA916494A
Inventor
Matsunaga Kenji
Horiuchi Michio
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
Publication date
Application grantedgrantedCritical
Publication of CA916494ApublicationCriticalpatent/CA916494A/en