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
CA856494A
Inventor
Miyamatsu Yasunori
Enari Shoji
Hashimoto Yuji
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.)
Toyo Kohan Co Ltd
Original Assignee
Toyo Kohan Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA856494ApublicationCriticalpatent/CA856494A/en