Patent 4151782 Handgun with indexing means (1979)
Patent 4155187 Manually cycled pistol (1979)
Patent 4342169 Manually cycled pistol (1982)
Patent 4897950 Locking device for the crane of a revolver (1990)
Patent 5437118 Frame plug for semi-automatic handguns (1995)
Patent EP 0239544 B1 (1990)
Patent EP 0343115 B1 (1994)
Patent EP 0359715 B1 (1994)
Patent EP 0364408 A1 (1990)
Patent US 2010/0031812 A1 Delayed blowback firearms with novel mechanisms for control of recoil and muzzle climb
Patent US 2011/0225862 A1 Reciprocating barrel pistol (2011)
Armorers manual Glock Safe Action pistols
Armorers manual P228
Automatic pistol shooting (by Walter Winas) (1915)
Description and instructions Webley-Fosbery Automatic Revolver
Description of the Automatic pistol, caliber .45 model of 1911 (1917)