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
CA896372A
Inventor
B. Blair Calvin
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.)
UNITED MANUFACTURERS
Original Assignee
UNITED MANUFACTURERS
Publication date
Application grantedgrantedCritical
Publication of CA896372ApublicationCriticalpatent/CA896372A/en