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
CA833688A
Inventor
R. Burt Harold
H. Albert Campbell, Jr.
M. Faust Claude
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.)
KWF Industries Inc
Original Assignee
KWF Industries Inc
Publication date
Application grantedgrantedCritical
Publication of CA833688ApublicationCriticalpatent/CA833688A/en