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 US5421Aexternal-prioritypatent/US3085782A/en
Application filed by M GrovefiledCriticalM Grove
Publication of DK114312BpublicationCriticalpatent/DK114312B/en