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
CA836923A
Inventor
M. Brandtberg Kai
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.)
BRINCH AND SPEHR AS
Original Assignee
BRINCH AND SPEHR AS
Publication date
Application grantedgrantedCritical
Publication of CA836923ApublicationCriticalpatent/CA836923A/en