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
CA890218A
Inventor
Butterworth Philip
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.)
Butterworth Hydraulic Developments Ltd
Original Assignee
Butterworth Hydraulic Developments Ltd
Publication date
Application grantedgrantedCritical
Publication of CA890218ApublicationCriticalpatent/CA890218A/en