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
CA678591A
Inventor
E. Blake 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.)
IRVINGTON MACHINE WORKS
Original Assignee
IRVINGTON MACHINE WORKS
Publication date
Application grantedgrantedCritical
Publication of CA678591ApublicationCriticalpatent/CA678591A/en