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
CA688051A
Inventor
Sheldon-Williams Charles
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.)
Albert E Reed and Co Ltd
Original Assignee
Albert E Reed and Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA688051ApublicationCriticalpatent/CA688051A/en