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
CA868408A
Inventor
Onodera Nobuo
Mitsuta Hiroshi
Wataya Masataka
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.)
Hodogaya Chemical Co Ltd
Original Assignee
Hodogaya Chemical Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA868408ApublicationCriticalpatent/CA868408A/en