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
CA908596A
Inventor
M. Batson Dossie
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.)
LOGGING SYSTEMS
Original Assignee
LOGGING SYSTEMS
Publication date
Application grantedgrantedCritical
Publication of CA908596ApublicationCriticalpatent/CA908596A/en