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
CA667726A
Inventor
Engel Thomas
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.)
ROSEDALE ASSOCIATED MANUFACTURERS Ltd
Original Assignee
ROSEDALE ASSOCIATED MANUFACTURERS Ltd
Publication date
Application grantedgrantedCritical
Publication of CA667726ApublicationCriticalpatent/CA667726A/en