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
CA597267A
Inventor
R. Brodie George
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.)
Fredk H Levey Co Inc
Original Assignee
George R Brodie
Fredk H Levey Co Inc
Publication date
Application grantedgrantedCritical
Publication of CA597267ApublicationCriticalpatent/CA597267A/en