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.)
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Publication date
Priority claimed from AT661360Aexternal-prioritypatent/AT221144B/de
Priority claimed from AT533161Aexternal-prioritypatent/AT234773B/de
Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of FI42447BpublicationCriticalpatent/FI42447B/fi
