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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 AT801861Aexternal-prioritypatent/AT228136B/de
Priority claimed from AT156862Aexternal-prioritypatent/AT256728B/de
Priority claimed from AT798062Aexternal-prioritypatent/AT258222B/de
Application filedfiledCritical
Priority to FR913273ApriorityCriticalpatent/FR83510E/fr
Application grantedgrantedCritical
Publication of FR83510EpublicationCriticalpatent/FR83510E/fr