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
CA881832A
Inventor
C. Pearl Donald
T. Breitenstein Charles
A. Eliason Walter
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.)
Rowe International Corp
Original Assignee
Rowe International Corp
Publication date
Application grantedgrantedCritical
Publication of CA881832ApublicationCriticalpatent/CA881832A/en