| 1928 LOCKWOOD Tracker Mechanism Musical Instruments |
| 1928 MUELLER Feeding Mechanism Sewing Machines |
| 1928 PAGE Extractor Mechanism Bolt Action Firearms |
| 1928 PECK Propelling Mechanism For Boats Patent |
| 1928 SINGER CO Feeding Mechanism Sewing Machines |
| 1928 LOUIS Contact Mechanism Toy Railroads Print |
| 1928 RUDOLF Feeding Mechanism Sewing Machines |
| 1928 MCGINLEY Locking Mechanism Patent Print Art |
| 1928 RUDOLPH Tracker Mechanism Musical Instruments |
| 1928 ALLEN Octave Key Mechanism Wood Wind Instruments |
| 1928 WRIGHT Rudder Operating Mechanism Aircraft |
| 1928 UNION Thread Controlling Mechanism Sewing Machines |
| 1928 SOUTHERN Stop Mechanism Sewing Machines Art |
| 1928 GRAMSE Stop Mechanism Sewing Machines Art |
| 1928 SINGER CO Driving Stopping Mechanism Art |
| 1928 WILCOX EDGAR Switch Mechanism Patent Print |
| 1928 JOSEPH Trimming Mechanism Sewing Machines |
| 1928 LOOMIS Automatic Octave Mechanism Patent 17260 |
| 1928 MINER INC W H Shock Absorbing Mechanism Art |
| 1928 JOSEPH Hoisting Mechanism Dumping Trucks |