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
CA633743A
Inventor
T. Works Madden
Allen Herbert
P. Oliver John
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.)
Cooper Industries LLC
Original Assignee
Cameron Iron Works Inc
Publication date
Application grantedgrantedCritical
Publication of CA633743ApublicationCriticalpatent/CA633743A/en