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
CA697310A
Inventor
Miyamoto Tadashi
Matsumoto Kazuo
Shinbori Yoshio
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.)
GOTOH EDUCATIONAL FOUNDATION
Original Assignee
GOTOH EDUCATIONAL FOUNDATION
Publication date
Application grantedgrantedCritical
Publication of CA697310ApublicationCriticalpatent/CA697310A/en