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
CA727395A
Inventor
L. Jaffa Matthew
Jaffa David
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.)
Precision Screen Machines Inc
Original Assignee
Precision Screen Machines Inc
Publication date
Application grantedgrantedCritical
Publication of CA727395ApublicationCriticalpatent/CA727395A/en