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
CA592252A
Inventor
N. Robinson Joseph
Chu Liang Shou
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.)
Nova Beaucage Mines Ltd
Original Assignee
Nova Beaucage Mines Ltd
Publication date
Application grantedgrantedCritical
Publication of CA592252ApublicationCriticalpatent/CA592252A/en