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 DE2545463Aexternal-prioritypatent/DE2545463C2/de
Priority claimed from DE2617760Aexternal-prioritypatent/DE2617760C2/de
Priority claimed from DK453176Aexternal-prioritypatent/DK156382C/da
Application filed by Vakuum Vulk Holdings LtdfiledCriticalVakuum Vulk Holdings Ltd
Publication of DK309182ApublicationCriticalpatent/DK309182A/da
Publication of DK156420BpublicationCriticalpatent/DK156420B/da
Application grantedgrantedCritical
Publication of DK156420CpublicationCriticalpatent/DK156420C/da