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
CA890547A
Inventor
A. Obermaier Alfred
P. Pierman Martin
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.)
Alnor Instrument Co
Original Assignee
Alnor Instrument Co
Publication date
Application grantedgrantedCritical
Publication of CA890547ApublicationCriticalpatent/CA890547A/en