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
CA793589A
Inventor
S. Knochel Edward
A. Jackson Martin
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.)
VAN ZELM ASSOCIATES
Original Assignee
VAN ZELM ASSOCIATES
Publication date
Application grantedgrantedCritical
Publication of CA793589ApublicationCriticalpatent/CA793589A/en