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
CA643347A
Inventor
Takai Unokichi
Ishiyama Tsunekatsu
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.)
YAMANASHI KASEI KOGYO KABUSHIKI KAISHIYA
Original Assignee
YAMANASHI KASEI KOGYO KABUSHIKI KAISHIYA
Publication date
Application grantedgrantedCritical
Publication of CA643347ApublicationCriticalpatent/CA643347A/en