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
CA641277A
Inventor
W. Stobart Leslie
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.)
Whipp and Bourne Ltd
Original Assignee
Whipp and Bourne Ltd
Publication date
Application grantedgrantedCritical
Publication of CA641277ApublicationCriticalpatent/CA641277A/en