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
CA651227A
Inventor
Kolker Maurice
E. Read Alfred
David Joseph
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.)
Catomance Ltd
Original Assignee
Catomance Ltd
Publication date
Application grantedgrantedCritical
Publication of CA651227ApublicationCriticalpatent/CA651227A/en