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
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Application filed by H K TellefsenfiledCriticalH K Tellefsen
Priority to DK420577ApriorityCriticalpatent/DK142156B/da
Publication of DK420577ApublicationCriticalpatent/DK420577A/da
Publication of DK142156BpublicationCriticalpatent/DK142156B/da
Application grantedgrantedCritical
Publication of DK142156CpublicationCriticalpatent/DK142156C/da
