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.)
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.)
RUSTLESS IRON AND STEEL Corp
American Rolling Mill Co
Original Assignee
RUSTLESS IRON AND STEEL Corp
American Rolling Mill Co
Publication date
Application grantedgrantedCritical
Publication of CA441818ApublicationCriticalpatent/CA441818A/en