Legal status (The legal status 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 status listed.)
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 claimed from DESCH5461Aexternal-prioritypatent/DE899493C/de
Priority claimed from DESCH6825Aexternal-prioritypatent/DE912208C/de
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR1053925ApublicationCriticalpatent/FR1053925A/fr