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 NL95986ApriorityCriticalpatent/NL52179C/xx
Priority to BE440578Dprioritypatent/BE440578A/nl
Application grantedgrantedCritical
Publication of NL52179CpublicationCriticalpatent/NL52179C/xx