Automatisch kanon Hispano Suiza, model T31 (M3), kaliber 20 x 110 mm, gebruikt door de Nederlandse Koninklijke Marine Automatisch kanon Hispano Suiza model T31 (M3), kaliber 20 x 110 mm, gebruikt door de Nederlandse Koninklijke Marine studies in communist affairs Soviet theater nuclear offensive / prepared for Office of Director of Defense Research and Engineering (net technical assessment) and Defense Nuclear Agency by Joseph D. …
