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
CA841367A
Inventor
O. Jacobs Gerard
W. Rowland-Hill Edward
Van Herpe Francois
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.)
Clayson NV
Original Assignee
Clayson NV
Publication date
Application grantedgrantedCritical
Publication of CA841367ApublicationCriticalpatent/CA841367A/en