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
CA831744A
Inventor
Taniguchi Naonori
Wachi Akira
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.)
AIDA TEKKOSHO KK
Original Assignee
AIDA TEKKOSHO KK
Publication date
Application grantedgrantedCritical
Publication of CA831744ApublicationCriticalpatent/CA831744A/en