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
CA618173A
Inventor
I. Bousman Samuel
M. Kivari Arthur
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.)
PROCESS ENGINEERS
Original Assignee
PROCESS ENGINEERS
Publication date
Application grantedgrantedCritical
Publication of CA618173ApublicationCriticalpatent/CA618173A/en