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 filed by Gsell Henry AlfredfiledCriticalGsell Henry Alfred
Priority to NL468ApriorityCriticalpatent/NL162C/nl
Application grantedgrantedCritical
Publication of NL162CpublicationCriticalpatent/NL162C/nl