| 1920 AEROPLANE Aeroplane Pleasure Railway Art |
| 1920 CURTISS AEROPLANE MOTOR CO Flying Boat Hull |
| 1920 KAWNEER Aeroplane Rudder Construction Art |
| 1920 EGGLESTON AIR CELL AEROPLANE C Airplane Art |
| 1920 PITTSBURGH AEROPLANE MOTOR C Propeller Art |
| 1920 MOTT SAMUEL Aeroplane Propeller Patent |
| 1920 SHAFFER Aeroplane Propeller Patent Print |
| 1920 FREDERICK Aeroplane Control Patent Print |
| 1920 MURDOCK War Aeroplane Fuel Tank Patent |
| 1920 DALTON Aeroplane Wing Structure Patent |
| 1920 WIELGOSZ Aeroplane Starting Landing Platform |
| 1920 JAMES INGELLS Aeroplane Tractor Patent |
| 1920 HENRY Aeroplane Construction Patent Print |
| 1920 DONEY Aeroplane Speed Boat Patent Print Art |
| 1920 WILLIAMS Aeroplane Pleasure Railway Patent |
| 1920 HASKELITE MFG CORP Aeroplane Body Patent |
| 1920 AEROMARINE PLANE MOTOR IN Aeroplane Fitting |
| 1920 ROBINSON Aeroplane Fitting Patent Print Art |
| 1920 MORSE FRANK Aeroplane Control Patent Print |
| 1920 CURTISS AEROPLANE MOTOR CO Control Mechanism |