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
CA770602A
Inventor
Ito Teiichiro
Ogawa Hiroshi
Ishii Tadao
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.)
Meiji Seika Kaisha Ltd
Original Assignee
Meiji Seika Kaisha Ltd
Publication date
Application grantedgrantedCritical
Publication of CA770602ApublicationCriticalpatent/CA770602A/en