Technical Report J-28. 8 mm unknown type japanese machine carbine
Patent 299686 Machine gun (1884)
Patent 439248 Machine gun (1890)
Patent 502185 Machine gun (1893)
Patent 698472 Automatic gun (1902)
Patent 1256923 Machine gun (1918)
Patent 2453830 Machine gun (1948)
Patent 1821463 Machine gun (1931)
Patent 2110165 Machine gun (1935)
Patent 1451443 Machine gun (1918)
Patent 1456625 Machine gun (1921)
Patent 1786207 Machine gun (1930)
Patent 2220663 Machine gun (1938)
Patent 2031383 Machine gun bolt mechanism (1936)
Patent 2113793 Machine gun and drum magasine therefor (1936)
Patent 2418462 Machine gun magazine and cradle therefor (1947)