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
Inventor
Keyes Jack
J. Smith Lawrence
L. Oehlerking Erwin
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.)
ITT Bell and Gossett Inc
Original Assignee
Bell and Gossett Co
Publication date
Application grantedgrantedCritical
Publication of CA680564ApublicationCriticalpatent/CA680564A/en