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
CA602139A
Inventor
M. Peterson Russell
W. Spencer Paul
R. Peterson Gordon
F. Mclouth Bruce
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.)
BURN-ZOL Co
Original Assignee
BURN-ZOL Co
Publication date
Application grantedgrantedCritical
Publication of CA602139ApublicationCriticalpatent/CA602139A/en