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
CA842027A
Inventor
H. Natschke Eldred
W. St. Pierre Frederick
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.)
CANADIAN CARDWELL Co
Original Assignee
CANADIAN CARDWELL Co
Publication date
Application grantedgrantedCritical
Publication of CA842027ApublicationCriticalpatent/CA842027A/en