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
CA818706A
Inventor
L. Herold Henry
Marchant Harold
F. Cooper Donald
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.)
Scientific Data Systems Inc
Original Assignee
Scientific Data Systems Inc
Publication date
Application grantedgrantedCritical
Publication of CA818706ApublicationCriticalpatent/CA818706A/en