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
CA746236A
Inventor
H. Birman 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.)
GEOTHERMAL SURVEYS Inc
Original Assignee
GEOTHERMAL SURVEYS Inc
Publication date
Application grantedgrantedCritical
Publication of CA746236ApublicationCriticalpatent/CA746236A/en