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
Priority to NL164462DpriorityCriticalpatent/NL164462B/xx
Application filedfiledCritical
Priority to NL164462Aprioritypatent/NL81054C/xx
Application grantedgrantedCritical
Publication of NL81054CpublicationCriticalpatent/NL81054C/xx