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 NL166879DpriorityCriticalpatent/NL166879B/xx
Priority to NL166879Aprioritypatent/NL91409C/xx
Application grantedgrantedCritical
Publication of NL91409CpublicationCriticalpatent/NL91409C/xx