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
CA711915A
Inventor
E. Pittman Clarence
W. Hilverink John
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.)
FLOY M B HILVERINK
Original Assignee
FLOY M B HILVERINK
Publication date
Application grantedgrantedCritical
Publication of CA711915ApublicationCriticalpatent/CA711915A/en