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
CA885758A
Inventor
Nishina Hajime
Kashiwabara Susumu
Suzuki Toshio
Kinoshita Yoji
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.)
HOKKAI SEISHI KK
Original Assignee
HOKKAI SEISHI KK
Publication date
Application grantedgrantedCritical
Publication of CA885758ApublicationCriticalpatent/CA885758A/en