| 1938 SIKORSKY Wing Attaching Hull Superstructure |
| 1938 VAUGHN Rotative Wing System Patent Print |
| 1938 ELLIOT Rotary Wing Aircraft Patent Print |
| 1938 CHARLES Variable Incidence Wing Airplanes |
| 1938 AUTOGIRO AMERICA Autorotative Wing Aircraft |
| 1938 WALTER Auxiliary Wing For Aircraft Patent |
| 1938 UNITED AIRCRAFT CORP Wing Radiator Patent |
| 1938 MICHAEL Extensible Airplane Wing Patent |
| 1938 ALEXANDRE Wing For Aircraft Patent Print |
| 1938 EDWARD BURKE WILFORD Rotary Wing Aircraft |
| 1938 CURTISS WRIGHT CORP Wing Flap Patent Print |
| 1938 BELLANCA GIUSEPPE Wing Structure Patent |
| 1938 RAOUL Rotative Wing Aircraft Patent Print |
| 1938 DRAIM Airplane Wing Structure Patent Print |
| 1938 RAOUL Rotating Wing Aircraft Patent Print |
| 1938 BLAYLOCK RAYMOND Wing Flap Patent Print Art |
| 1938 SIKORSKY IGOR Wing Radiator Patent Print |
| 1938 HANNS Monospar Cantilever Aircraft Wing Art |
| 1938 DE Aircraft Wing Structure Patent Print Art |
| 1938 ERNEST Airplane Wing Structure Patent Print |
| 1938 ASH Gyratory Airplane Wing Patent Print Art |
| 1938 BURGESS Variable Camber Wing Aircraft Art |