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 NL166879ApriorityCriticalpatent/NL91409C/xx
Priority to NL166879Dprioritypatent/NL166879B/xx
Application grantedgrantedCritical
Publication of NL91409CpublicationCriticalpatent/NL91409C/xx