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
CA887788A
Inventor
Roffelsen Franciscus
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.)
Spiro Research NV
Original Assignee
Spiro Research NV
Publication date
Application grantedgrantedCritical
Publication of CA887788ApublicationCriticalpatent/CA887788A/en