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
CA630293A
Inventor
Sawatari Ken-Ichi
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.)
Welfide Corp
Original Assignee
Welfide Corp
Publication date
Application grantedgrantedCritical
Publication of CA630293ApublicationCriticalpatent/CA630293A/en