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
CA869383A
Inventor
W. Alton Thomas
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.)
Pak Well Corp
Original Assignee
Pak Well Corp
Publication date
Application grantedgrantedCritical
Publication of CA869383ApublicationCriticalpatent/CA869383A/en