Patent 2098727 Lock mechanism for automatic guns (1934)
Patent 3198076 Convertible gun (1965)
Patent 5513461 Light-weight automatic rifle (1996)
Patent EP 0188179 B1 (1990)
Patent EP 0555617 B1 (1992)
Patent US 2010/0126053 A1 Ammunition magazine with four ammunition stacks
Patent 33089 Shell (1861)
Patent 1399243 Trench mortar (1921)
Patent 1471063 Trench mortar (1923)
Patent 1524273 Trench mortar and the like (1925)
Patent 1633710 Trench mortar and the like (1927)
Patent 3505924 Silent mortar (1970)
Brief description of the light machine gun HK11A1
Description of the Madsen machine gun model 1940
Description on the Madsen/Saetter machine gun rifle calibre mark II
FM 23-14 Squad automatic weapon (SAW), M249