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
Application filedfiledCritical
Priority to NL6710109ApriorityCriticalpatent/NL6710109A/xx
Priority to BE703735Dprioritypatent/BE703735A/xx
Priority to DE19671549513prioritypatent/DE1549513C3/de
Publication of NL6710109ApublicationCriticalpatent/NL6710109A/xx