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
CA858404A
Inventor
L. Mackey Eugene
D. Krepp 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.)
LEE WILSON ENGINEERING Co
Original Assignee
Eugene L Mackey
John D Krepp
LEE WILSON ENGINEERING Co
Publication date
Application grantedgrantedCritical
Publication of CA858404ApublicationCriticalpatent/CA858404A/en