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
CA 33516
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.)
AW Sperry Instruments Inc
Original Assignee
AW Sperry Instruments Inc
Publication date
Priority to CA 33516priorityCriticalpatent/CA33516S/en
Application grantedgrantedCritical
Publication of CA33516SpublicationCriticalpatent/CA33516S/en