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
CA816548A
Inventor
Amano Shuichi
Ozono Tetsujiro
Koizumi Kiyotaka
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.)
Amano Corp
Original Assignee
Amano Corp
Publication date
Application grantedgrantedCritical
Publication of CA816548ApublicationCriticalpatent/CA816548A/en