| 1927 SULLIVAN Lifting Mechanism Railway Cars Art |
| 1927 REID Hoisting Mechanism Dump Trucks Art |
| 1927 YUSKE Hand Brake Mechanism Railway Cars Art |
| 1927 KARNES Mechanism Setting Fuses Within Guns |
| 1927 BYRNES Firing Mechanism Multiple Barrel Guns |
| 1927 WILSON Purifying Mechanism And Method |
| 1927 ANTON Steering Mechanism Aeroplanes Art |
| 1927 CLYDE Guiding Controlling Mechanism Trucks Like |
| 1927 HANSON Driving Mechanism Sewing Machine Batteries |
| 1927 SMALL Buffer Mechanism Diaphragm Face Plates |
| 1927 RYDBERG Transmission Mechanism Player Actions |
| 1927 KAPPEL Jacquard Mechanism Embroidering Machines |
| 1927 MALOCSAY Automatic Feeding Mechanism Patent 20296 |
| 1927 RALPH Human Power Driving Mechanism Vehicles |
| 1927 DEVERALL Combination Stop Mechanism Organs |
| 1927 WRIGLEY Brake Mechanism Railway Cars Art |
| 1927 SMITH Barrel Locking Mechanism Breakdown Guns |
| 1927 FRIEDRICH Propelling Mechanism Ships Art |
| 1927 BARNES Trigger Mechanism Firearms Art Print |
| 1927 GREEN Spool Mechanism Musical Instrument Player S |