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
CA621586A
Inventor
S. Nossen Ernest
E. Parks Roy
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.)
Alscope Explorations Ltd
Original Assignee
Alscope Explorations Ltd
Publication date
Application grantedgrantedCritical
Publication of CA621586ApublicationCriticalpatent/CA621586A/en