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
CA839754A
Inventor
Sawaki Mikio
Asada Mitsuo
Noguchi Teruhisa
Aoki Yoshiyasu
Sakimoto Reiji
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.)
NIPPON SODA KK
Original Assignee
NIPPON SODA KK
Publication date
Application grantedgrantedCritical
Publication of CA839754ApublicationCriticalpatent/CA839754A/en