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
CA597394A
Inventor
Sasaki Noburo
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.)
ZAIDAN HOJIN SEKITAN SOGO KENKYUJO
Original Assignee
ZAIDAN HOJIN SEKITAN SOGO KENKYUJO
Publication date
Application grantedgrantedCritical
Publication of CA597394ApublicationCriticalpatent/CA597394A/en