| 1928 GOODYEAR ZEPPELIN CORP Landing Bumper Airships |
| 1928 LA Undercarriage Landing Gear Aircraft Art |
| 1928 WAIT Retractable Landing Gear Patent Print |
| 1928 CAPELL Retractable Landing Light Patent |
| 1928 VLOTEN Flying Machine Landing Light Patent |
| 1928 ORIN Aeroplane Landing Launching Art Print |
| 1928 STRONG Airplane Landing Hook Patent Print |
| 1928 MUMMERT Aeroplane Landing Gear Patent Print |
| 1928 OSCAR SILVERSTEIN Landing Gear Patent Print |
| 1928 CARNS Landing Gear Flying Machines Art |
| 1928 MARIO Landing Gear For Airplanes Patent |
| 1928 ALLEN HAROLD Fish Landing Net Patent Print |
| 1928 HALL Aircraft Landing Housing Art Print |
| 1928 RICHARD Landing Equipment Airships Art |
| 1928 BLAIR Landing Gear For Aeroplanes Patent |
| 1928 BRUSH Safety Landing Take Off Aeroplanes |
| 1928 FOX Launching And Landing Platform Patent |
| 1928 VALKENBERG EBER Landing Gear Patent Print |
| 1928 BOEING CO Airplane Landing Hook Patent |
| 1928 EUGENE Landing Bumper For Airships Patent |