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 NL169900DpriorityCriticalpatent/NL169900B/xx
Priority to NL169900Aprioritypatent/NL78816C/xx
Application grantedgrantedCritical
Publication of NL78816CpublicationCriticalpatent/NL78816C/xx