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
CA850676A
Inventor
Saito Norio
Kimura Hiroshiro
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
Publication date
Application grantedgrantedCritical
Publication of CA850676ApublicationCriticalpatent/CA850676A/en