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
CA772025A
Inventor
H Albert Campbell, Jr.
R. Burt Harold
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 CA772025ApublicationCriticalpatent/CA772025A/en