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
CA798237A
Inventor
L. Hall Hubert
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.)
INTERNATIONAL PROCESSES Ltd
Original Assignee
INTERNATIONAL PROCESSES Ltd
Publication date
Application grantedgrantedCritical
Publication of CA798237ApublicationCriticalpatent/CA798237A/en