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 NL134771DpriorityCriticalpatent/NL134771C/xx
Priority to NL276527Dprioritypatent/NL276527A/xx
Application filed by Ena EtsfiledCriticalEna Ets
Priority to AT261161Aprioritypatent/AT226051B/de
Priority to DEE22564Aprioritypatent/DE1263736B/de
Priority to CH352662Aprioritypatent/CH415275A/de
Priority to US182202Aprioritypatent/US3223699A/en
Priority to FR892523Aprioritypatent/FR1331383A/fr
Priority to SE3483/62Aprioritypatent/SE312131B/xx
Application grantedgrantedCritical
Publication of AT226051BpublicationCriticalpatent/AT226051B/de