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
CA851328A
Inventor
A. Colarossi Lawrence
S. James Thomas
Gebhart J. Reiling, Jr.
Tarquinio Anthony
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.)
Pittsburgh Des Moines Steel Co
Original Assignee
Pittsburgh Des Moines Steel Co
Publication date
Application grantedgrantedCritical
Publication of CA851328ApublicationCriticalpatent/CA851328A/en