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 DK680187Aexternal-prioritypatent/DK157388C/da
Priority claimed from DK270288Aexternal-prioritypatent/DK159714C/da
Application filed by Den Flex AsfiledCriticalDen Flex As
Application grantedgrantedCritical
Publication of ATE79237T1publicationCriticalpatent/ATE79237T1/de