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
CA224,974A
Inventor
Hendrik Hansma
Hendrik H.J. Oosterwijk
Hans Jaspers
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.)
Akzo NV
Original Assignee
Akzo NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from NL7114992.Aexternal-prioritypatent/NL163518C/en
Application filed by Akzo NVfiledCriticalAkzo NV
Priority to CA224,974ApriorityCriticalpatent/CA983949A/en
Application grantedgrantedCritical
Publication of CA983949ApublicationCriticalpatent/CA983949A/en