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
CA635664A
Inventor
C. Morton David
J. Packman Percival
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.)
Forgrove Machinery Co Ltd
Original Assignee
Forgrove Machinery Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA635664ApublicationCriticalpatent/CA635664A/en