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
CA859143A
Inventor
T. Hjermstad Erling
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.)
PENICK AND FORD
Original Assignee
PENICK AND FORD
Publication date
Application grantedgrantedCritical
Publication of CA859143ApublicationCriticalpatent/CA859143A/en