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
CA607543A
Inventor
A. Smith William
A. Zandon Victor
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.)
AMERICAN METAL Co
Original Assignee
AMERICAN METAL Co
Publication date
Application grantedgrantedCritical
Publication of CA607543ApublicationCriticalpatent/CA607543A/en