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
CA905349A
Inventor
Gray Robert
T. Halstrick Robert
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 WORKS
Original Assignee
AMERICAN METAL WORKS
Publication date
Application grantedgrantedCritical
Publication of CA905349ApublicationCriticalpatent/CA905349A/en