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
CA735682A
Inventor
J. Zimmermann Hans
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.)
Rudd Melikian Inc
Original Assignee
Hans J Zimmermann
Rudd Melikian Inc
Publication date
Application grantedgrantedCritical
Publication of CA735682ApublicationCriticalpatent/CA735682A/en