| 1962 STARWOOD IND INC Railroad Boxcar Loading Mechanism |
| 1958 CLEVELAND PNEUMATIC IND INC Steering Mechanism |
| 1957 BROWNING IND INC Recoil Mechanism Firearms |
| 1940 GAR WOOD IND INC Body Hoisting Mechanism |
| 1950 OLIN IND INC Cartridge Feeding Mechanism Firearms |
| 1939 GAR WOOD IND INC Body Hoisting Mechanism |
| 1952 OLIN IND INC Single Trigger Mechanism Art |
| 1957 HANCOCK IND Timing Mechanism Patent Print |
| 1946 OLIN IND INC Safety Mechanism Bolt Action Firearms |
| 1941 GAR WOOD IND INC Hydraulic Hoisting Mechanism |
| 1965 ACF IND INC Hopper Door Operating Mechanism |
| 1949 OLIN IND INC Safety Mechanism Firearms Art |
| 1960 CLEVELAND PNEUMATIC IND INC Hatch Cover Mechanism |
| 1963 BROWNING IND INC Recoil Absorbing Mechanism |
| 1952 OLIN IND INC Fire Control Mechanism Firearms |
| 1959 CONS ELECTRONICS IND Stop Clock Reset Mechanism |
| 1954 OLIN IND INC Takedown Mechanism Firearms |
| 1952 OLIN IND INC Takedown Mechanism Firearms |
| 1960 CLEVELAND PNEUMATIC IND INC Steering Mechanism |
| 1933 KOPPCL IND CAR EQUIPMENT C Car Dumping Mechanism |
| 1961 ACF IND INC Sliding Door Mechanism Patent |
| 1968 SPORTS IND INC Reserve Valve Mechanism Art |
| 1955 ACF IND INC Latch Tripping Mechanism Patent |
| 1940 GAR WOOD IND INC Dump Truck Mechanism Art |
| 1951 OLIN IND INC Safety Mechanism Firearms Art |