| 1927 AMERICAN STEEL FOUNDRIES Coupler Mechanism |
| 1951 AMERICAN BRAKE CO Brake Mechanism Patent |
| 1943 AMERICAN Railway Car Truck Its Brake Mechanism |
| 1927 AMERICAN ENG CO LTD Control Mechanism |
| 1922 AMERICAN Railway Trapdoor Lock Mechanism |
| 1922 AMERICAN Reversible Fulcrum Mechanism Art |
| 1940 AMERICAN ENG LTD Hydraulic Control Mechanism |
| 1964 AMERICAN Railway Switch Actuating Mechanism |
| 1935 AMERICAN ENG LTD Hoisting Mechanism Art |
| 1950 AMERICAN Coupler Operating Mechanism Art |
| 1920 AMERICAN STEEL FOUNDRIES Brake Mechanism |
| 1942 AMERICAN BRAKE CO Brake Mechanism Patent |
| 1926 AMERICAN Locking Mechanism Car Vestibule Trap Door |
| 1961 AMERICAN Operating Mechanism Rail Lubricator |
| 1969 AMERICAN Thread Severing Mechanism Art |
| 1933 AMERICAN CAR FOUNDRY CO Buffer Mechanism Car Doors |
| 1961 AMERICAN MACH FOUNDRY Ball Pin Handling Mechanism |
| 1935 AMERICAN LOCOMOTIVE CO Brake Mechanism Art |
| 1923 AMERICAN HAND BRAKE Holding Car Brake Mechanism |
| 1925 AMERICAN FLYER Toy Mail Bag Loading Mechanism |
| 1924 AMERICAN Alarm Setting Actuating Mechanism Clocks |
| 1962 AMERICAN MACH FOUNDRY Bowling Ball Stop Mechanism |
| 1931 AMERICAN STEEL WIRE CO Cable Cutting Mechanism |
| 1947 AMERICAN MACH FOUNDRY Sewing Mechanism Art |
| 1946 AMERICAN Stitch Length Adjusting Mechanism |
| 1953 AMERICAN MACH FOUNDRY Pinfall Signaling Mechanism |
| 1937 AMERICAN STEEL FOUNDRIES Brake Mechanism |
| 1958 AMERICAN Rotor Brake Actuating Mechanism |
| 1927 AMERICAN Lock Car Door Operating Mechanism |
| 1929 AMERICAN PIANO Pedal Operating Mechanism |
| 1963 AMERICAN MACH FOUNDRY Pin Conveying Mechanism |
| 1920 AMERICAN STEEL FOUNDRIES Coupling Mechanism |
| 1942 AMERICAN Balanced Door Roller Lift Mechanism |
| 1951 AMERICAN Stitch Handling Mechanism Sewing Machines |
| 1920 AMERICAN BALSA INC Mechanism Turning Ships' Davits |
| 1923 AMERICAN PIANO Start Stop Mechanism Art |
| 1937 AMERICAN BRAKE CO Brake Mechanism Patent |
| 1936 AMERICAN ENG LTD Steering Mechanism Art |
| 1921 AMERICAN STEEL FOUNDRIES Anchor Mechanism |
| 1940 AMERICAN HAIR FELT Stitching Mechanism Art |
| 1959 AMERICAN Sewing Machine Looper Mechanism |
| 1933 AMERICAN STEEL FOUNDRIES Brake Mechanism |
| 1922 AMERICAN STEEL FOUNDRIES Fulcrum Mechanism |
| 1923 AMERICAN BALSA INC Mechanism Turning Ships' Davits |
| 1934 AMERICAN STEEL FOUNDRIES Brake Mechanism |
| 1938 AMERICAN Reclining Seat Control Mechanism |
| 1935 AMERICAN ENG LTD Steering Mechanism Art |
| 1938 AMERICAN CAR FOUNDRY CO Walk Over Seat Mechanism |
| 1922 AMERICAN Car Door Operating Mechanism Art |
| 1946 AMERICAN Sewing Machine Needle Bar Mechanism |
| 1957 AMERICAN MACH FOUNDRY Ball Return Mechanism |
| 1927 AMERICAN CAR FOUNDRY CO Brake Mechanism Art |
| 1953 AMERICAN MACH FOUNDRY Thread Handling Mechanism |
| 1970 NORTH AMERICAN ROCKWELL Deployment Mechanism |
| 1946 AMERICAN STEEL FOUNDRIES Coupler Mechanism |
| 1958 AMERICAN Coupler Operating Mechanism Art |
| 1938 AMERICAN BRAKE CO Brake Mechanism Patent |
| 1952 NORTH AMERICAN AVIATION INC Wing Flap Mechanism |
| 1951 AMERICAN BRAKE CO Clasp Brake Mechanism Art |