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
CA670738A
Inventor
M. Guntert Ronald
F. Earley Wilbur
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.)
GUNTERT AND ZIMMERMAN
Original Assignee
GUNTERT AND ZIMMERMAN
Publication date
Application grantedgrantedCritical
Publication of CA670738ApublicationCriticalpatent/CA670738A/en