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
CA854353A
Inventor
V. Tarquinio Anthony
A. Colarossi Lawrence
Gebhart J. Reiling, Jr.
S. James Thomas
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 CA854353ApublicationCriticalpatent/CA854353A/en