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
CA810392A
Inventor
Shewan John
E. Coffer William
L. Miller Robert
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.)
REF-CON Corp
Original Assignee
REF-CON Corp
Publication date
Application grantedgrantedCritical
Publication of CA810392ApublicationCriticalpatent/CA810392A/en