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 NL116386ApriorityCriticalpatent/NL58703C/nl
Priority to BE461691Aprioritypatent/BE461691A/nl
Application grantedgrantedCritical
Publication of NL58703CpublicationCriticalpatent/NL58703C/nl