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
CA728802A
Inventor
C. I. Sellman Ulf
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.)
INSTRUMENTFABRIKSAKTIEBOLAGET LYTH
Original Assignee
INSTRUMENTFABRIKSAKTIEBOLAGET LYTH
Publication date
Application grantedgrantedCritical
Publication of CA728802ApublicationCriticalpatent/CA728802A/en