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
CA886529A
Inventor
P. L. Heidweiller August
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.)
KONINKLIJKE PAPIERFABRIEKEN VAN GELDER ZONEN NV
Original Assignee
KONINKLIJKE PAPIERFABRIEKEN VAN GELDER ZONEN NV
Publication date
Application grantedgrantedCritical
Publication of CA886529ApublicationCriticalpatent/CA886529A/en