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
CA679127A
Inventor
Kwo-Wei Chen William
S. Mintz Milton
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.)
AMF Inc
Original Assignee
AMF Inc
Publication date
Application grantedgrantedCritical
Publication of CA679127ApublicationCriticalpatent/CA679127A/en