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
CA817406A
Inventor
Duva Robert
Katz Bernard
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.)
Sel Rex Corp
Original Assignee
Sel Rex Corp
Publication date
Application grantedgrantedCritical
Publication of CA817406ApublicationCriticalpatent/CA817406A/en