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
CA751889A
Inventor
Zwerner William
Steiner Charles
Danemark Marius
Rochat Rene
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 CA751889ApublicationCriticalpatent/CA751889A/en