| 1928 JACKSON & CHURCH CO Car Coupler Patent |
| 1928 OHIO BRASS CO Car Air Electric Coupler System |
| 1928 REGAN WILLIAM Car Coupler Patent Print Art |
| 1928 SPEER Railroad Coupler Attachment Patent |
| 1928 KOONTZ Coupler For Mine Cars Patent Print |
| 1928 DAVID ROBINSON Car Coupler Patent Print Art |
| 1928 JOINER Car Coupler Lock Lifter Safety Attachment |
| 1928 LARSSON Car Air Electric Coupler System Art |
| 1928 CHURCH EDGAR Car Coupler Patent Print Art |
| 1928 PRATT Car Coupler Operating Device Patent |
| 1928 BUCKEYE Coupler Shank Yoke Connection Art |
| 1928 NAT MALLEABLE STEEL CASTINGS Car Coupler |
| 1928 WILLIAM KELSO Car Coupler Patent Print Art |
| 1928 CHARLES LUCAS Coupler For Mine Cars Patent |
| 1928 STRICKLER ELBERT Car Coupler Patent Print |
| 1928 JOHN WARE Car Pipe Coupler Patent Print Art |
| 1928 CLIFFORD Coupler Shank Yoke Connection Art |
| 1928 MCCONWAY & TORLEY CO Car Coupler Patent |
| 1928 TWEEDY JOHN Mine Car Coupler Patent Print |
| 1928 JOHN M WHEELER Railroad Coupler Attachment |