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
CA867218A
Inventor
L. Woolard Thomas
K. Rickard Earl
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.)
Alstom Power Inc
Original Assignee
Air Preheater Co Inc
Publication date
Application grantedgrantedCritical
Publication of CA867218ApublicationCriticalpatent/CA867218A/en