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 LU36793DpriorityCriticalpatent/LU36793A1/xx
Application filedfiledCritical
Priority to NL224629Aprioritypatent/NL93738C/xx
Priority to DEJ15833Aprioritypatent/DE1109575B/de
Priority to CH344937Dprioritypatent/CH344937A/de
Priority to BE574722Aprioritypatent/BE574722A/fr
Priority to FR41399Aprioritypatent/FR79442E/fr
Priority to FR39018Aprioritypatent/FR1224864A/fr
Application grantedgrantedCritical
Publication of NL93738CpublicationCriticalpatent/NL93738C/xx