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
CA885973A
Inventor
S. Gray Oscar
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.)
Gray Industries Inc
Original Assignee
Gray Industries Inc
Publication date
Application grantedgrantedCritical
Publication of CA885973ApublicationCriticalpatent/CA885973A/en