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
CA914197A
Inventor
Noguchi Teruhisa
Yasuda Yasushi
Hashimoto Sho
Kano Saburo
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 Co Ltd
Original Assignee
Nippon Soda Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA914197ApublicationCriticalpatent/CA914197A/en