| 1957 ERIC CLAESSON Gun Safety Mechanism Patent |
| 1949 HAAS Gun Loading Mechanism Patent Print Art |
| 1958 DODICH Machine Gun Trigger Mechanism Patent |
| 1962 DANIEL Gun Sight Mechanism Patent Print Art |
| 1890 GATLING Pneumatic Gun Mechanism Patent 22561 |
| 1957 SIMPSON Gun Feeding Mechanism Patent Print |
| 1942 RICHARD Gun Laying Mechanism Patent Print |
| 1956 BRAXTON Gun Firing Mechanism Patent Print |
| 1945 TROTTER Machine Gun Feed Mechanism Patent |
| 1968 CASULL Gun Firing Mechanism Patent Print |
| 1945 SCHIRGUN CORP Gun Mechanism Patent Print |
| 1941 ETTORE Aircraft Gun Mount Mechanism Patent |
| 1927 SHERMAN Gun Firing Mechanism Patent Print |
| 1946 THRESH Gun Charging Mechanism Patent Print |
| 1948 OLIVER Gun Primer Mechanism Patent Print |
| 1946 EKSERGIAN Recoilless Gun Mechanism Patent |
| 1949 KNOWLTON Gun Primer Mechanism Patent Print |
| 1943 JOYCE Gun Firing Mechanism Patent Print Art |
| 1924 BLAIR Gun Sighting Mechanism Patent Print |
| 1962 DAISY Gun Sight Mechanism Art Print Patent |
| 1956 ARNOLD Gun Recoil Mechanism Patent Print |
| 1944 OLSEN Automatic Gun Mechanism Patent Print |
| 1948 LIDRAL Gun Control Mechanism Patent Print |
| 1958 FRYE KENNETH Cap Gun Mechanism Patent Print |
| 1943 VICTOR Gun Laying Mechanism Patent Print |
| 1930 BOEING CO Gun Feeding Mechanism Patent |
| 1922 EICKHOFF THEODORE Gun Mechanism Patent |
| 1954 FINN Gun Cooling Mechanism Patent Print Art |
| 1950 FOLKESTAD Gun Controlling Mechanism Patent |
| 1944 TUCKER Gun Control Mechanism Patent Print |
| 1942 JOYCE Gun Locking Mechanism Patent Print |
| 1948 CHRISTIAN Gun Supporting Mechanism Patent |
| 1946 NAUGLER Gun Charging Mechanism Patent Print |
| 1953 LENNON Gun Mount Brake Mechanism Patent |
| 1944 CAULKINS Gun Loading Mechanism Patent Print |
| 1954 CHINN Gun Elevating Mechanism Patent Print |
| 1945 REEK ROYAL Gun Feed Mechanism Patent Print |
| 1946 HART Gun Mounting Mechanism Patent Print |
| 1946 TROTTER Machine Gun Feed Mechanism Patent |
| 1965 FRIEND Gun Hammer Spring Mechanism Patent |
| 1952 WALSH Gun Loading Mechanism Patent Print |
| 1945 SEARS ROEBUCK & CO Gun Mechanism Patent |
| 1958 KENDALL Gun Training Mechanism Patent Print |
| 1949 KNOWLTON Gun Charging Mechanism Patent |
| 1945 HENRY SCHIROKAUER Gun Mechanism Patent |
| 1957 JAMES POKORNY Gun Sight Mechanism Patent |
| 1948 BOEING CO Gun Control Mechanism Patent |
| 1946 GOEPFRICH Gun Charging Mechanism Patent |
| 1946 NASA Gun Mounting Mechanism Patent Print |
| 1947 BERNHARDT Gun Loading Mechanism Patent |
| 1920 PAYNE OSCAR Gun Mechanism Patent Print Art |
| 1920 AUTO ORDNANCE CORP Gun Mechanism Patent |
| 1957 DAVIS RODGER Gun Feed Mechanism Patent |
| 1956 FRYE Automatic Cap Gun Mechanism Patent |
| 1924 JOYCE Gun Recoil Mechanism Patent Print Art |
| 1950 HANS Gun Control Mechanism Patent Print Art |
| 1946 GREEN SAMUEL Gun Feed Mechanism Patent |
| 1945 BENDIX AVIAT CORP Gun Feed Mechanism Patent |
| 1922 AUTO ORDNANCE CORP Gun Mechanism Patent |
| 1957 COLLING Pneumatic Gun Mechanism Patent |
| 1963 HANS Gun Loading Mechanism Patent Print Art |
| 1953 KENDALL Gun Training Mechanism Patent Print |
| 1953 SIGMUND Gun Shell Feeding Mechanism Patent |
| 1950 ROY Toy Gun Cocking Mechanism Patent Print |
| 1944 LENNON Gun Elevating Mechanism Patent Print |
| 1945 OLE HORSRUD Gun Mechanism Patent Print Art |
| 1949 OLIVER Gun Primer Mechanism Patent Print |
| 1942 JOHN Gun Control Mechanism Patent Print Art |
| 1952 FRANCIS Gun Loading Mechanism Patent Print |