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
CA806076A
Inventor
H. Barwell John
J. Lanham Donald
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.)
Barwell Engineering Ltd
Original Assignee
Barwell Engineering Ltd
Publication date
Application grantedgrantedCritical
Publication of CA806076ApublicationCriticalpatent/CA806076A/en