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 NL228017ApriorityCriticalpatent/NL100001C/xx
Priority to BE578760Aprioritypatent/BE578760A/nl
Priority to CH7337359Aprioritypatent/CH387073A/de
Application grantedgrantedCritical
Publication of NL100001CpublicationCriticalpatent/NL100001C/xx