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
CA18702F
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.)
Campbell Engineering Co Ltd A British Co
Original Assignee
Campbell Engineering Co Ltd A British Co
Publication date
Priority to CA18702FpriorityCriticalpatent/CA18702S/en
Application grantedgrantedCritical
Publication of CA18702SpublicationCriticalpatent/CA18702S/en