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 DE19651529684priorityCriticalpatent/DE1529684A1/de
Application filedfiledCritical
Priority to NL6511966Aprioritypatent/NL6511966A/xx
Priority to FR52608Aprioritypatent/FR1481118A/fr
Publication of NL6511966ApublicationCriticalpatent/NL6511966A/xx