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
CA642044A
Inventor
James Cooper, Jr.
J. Aldrich Joseph
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.)
Chase Brass and Copper Co Inc
Original Assignee
Chase Brass and Copper Co Inc
Publication date
Application grantedgrantedCritical
Publication of CA642044ApublicationCriticalpatent/CA642044A/en