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
CA650780A
Inventor
A. Plummer Gilbert
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.)
JOHN THOMPSON WATER TUBE BOILERS Ltd
Original Assignee
JOHN THOMPSON WATER TUBE BOILERS Ltd
Publication date
Application grantedgrantedCritical
Publication of CA650780ApublicationCriticalpatent/CA650780A/en