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
CA712342A
Inventor
C. Miller Harry
Helesfai Steven
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.)
Sargent and Greenleaf Inc
Original Assignee
Sargent and Greenleaf Inc
Publication date
Application grantedgrantedCritical
Publication of CA712342ApublicationCriticalpatent/CA712342A/en