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
CA914389A
Inventor
E. Mix Joseph
R. Cox John
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.)
Warner and Swasey Co
Original Assignee
Warner and Swasey Co
Publication date
Application grantedgrantedCritical
Publication of CA914389ApublicationCriticalpatent/CA914389A/en