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 Triodetic Structures, Clarence Frank Fentiman, Arthur Edward Fentiman, Harold Gorden FentimanfiledCriticalTriodetic Structures
Publication of BE612105ApublicationCriticalpatent/BE612105A/fr