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
CA678969A
Inventor
W.H.M. Roncken Hubertus
H.M. Loenen Bernardus
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.)
Chemische Fabriek L Van der Grinten NV
Original Assignee
Chemische Fabriek L Van der Grinten NV
Publication date
Application grantedgrantedCritical
Publication of CA678969ApublicationCriticalpatent/CA678969A/en