| 1940 COULTER Aircraft Landing Floor Beacon Art |
| 1940 REINHARD Landing Gear And Control Patent |
| 1940 ADAIR SAMUEL Landing System Patent Print |
| 1940 SWANSON Retractable Landing Gear Patent |
| 1940 DE Oleo Landing Gears Like Art Print Patent |
| 1940 ERNEST BROWN Landing Net Patent Print Art |
| 1940 COLEMAN H NELSON Landing Net Patent Print |
| 1940 WARBORN Landing Gear For Aircraft Patent |
| 1940 COOKE Marking Aircraft Landing Areas Art |
| 1940 BROWN Retractable Landing Gear Patent Print |
| 1940 JAMES Attaching Means For Landing Nets |
| 1940 JOHN HENRY ONIONS Landing Gear Aircraft Art |
| 1940 SPRIGGS Collapsible Fish Landing Net Patent |
| 1940 OSGOOD Airplane With Retractable Landing Gear |
| 1940 WEAVER Landing Gear For Aircraft Patent |
| 1940 JEAN Retractable Landing Gear Aircraft Art |
| 1940 CLEVELAND PNEUMATIC TOOL CO Landing Gear |
| 1940 BENDIX RADIO CORP Landing System Patent |
| 1940 WALLACE Landing Wheel Mounting Aircraft Art |
| 1940 KOCH Landing Gear And Control Patent Print |
| 1940 VITO Marine Craft Landing Launching Art |
| 1940 WEAVER Valve Controlling Landing Gear Aircraft |