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
CA883431A
Inventor
Hashioka Noriyasu
Shinohara Kesao
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.)
Hope KK
Original Assignee
Hope KK
Publication date
Application grantedgrantedCritical
Publication of CA883431ApublicationCriticalpatent/CA883431A/en