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 FR1495068DpriorityCriticalpatent/FR1495068A/fr
Application filedfiledCritical
Priority to NL6511570Aprioritypatent/NL6511570A/xx
Priority to CH1269066Aprioritypatent/CH449082A/de
Priority to DE19661541508prioritypatent/DE1541508A1/de
Publication of NL6511570ApublicationCriticalpatent/NL6511570A/xx
