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
CA833947A
Inventor
N. Johnson Edward
Bath Walter
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.)
RAND MINES Ltd AND CHAMBER OF MINES SERVICES Pty LIMITED
Original Assignee
RAND MINES Ltd AND CHAMBER OF MINES SERVICES Pty LIMITED
Publication date
Application grantedgrantedCritical
Publication of CA833947ApublicationCriticalpatent/CA833947A/en