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
Application filed by Dempster Brothers IncfiledCriticalDempster Brothers Inc
Priority to DK239065ApriorityCriticalpatent/DK114888B/da
Publication of DK114888BpublicationCriticalpatent/DK114888B/da