| 1939 GEN MOTORS CORP Selector Switch Patent |
| 1939 CURTISS WRIGHT CORP Vernier Control Patent |
| 1939 COLSON CORP Lift Jack Patent Print Art |
| 1939 CURTISS WRIGHT CORP Engine Cowling Patent |
| 1939 CHRYSLER CORP Bearing Member Patent Print |
| 1939 AMERICAN MULTI PRODUCTS CORP Game Patent |
| 1939 ZAP DEV CORP Flap Device Patent Print Art |
| 1939 CHANDLER EVANS CORP Pump Patent Print Art |
| 1939 CHRYSLER CORP Bumper Guard Patent Print Art |
| 1939 DICTAPHONE CORP Hearing Tube Patent Print |
| 1939 EYEDOLL CORP Doll Construction Patent Print |
| 1939 CHRYSLER CORP Railway Vehicle Patent Print |
| 1939 J E PORTER CORP Basketball Backstop Patent |
| 1939 CAIRNS CORP Variable Pitch Propeller Patent |
| 1939 MULLINS MFG CORP Trailer Patent Print Art |
| 1939 ZAP DEV CORP Aileron Device Patent Print |
| 1939 GOULD COUPLER CORP Coupler Patent Print Art |
| 1939 COMMW MFG CORP Aperiodic Current Patent |
| 1939 AVIAT MFG CORP Airplane Patent Print Art |
| 1939 O C DURYEA CORP Car Construction Patent |
| 1939 GILPIN AUTOLOCK CORP Automobile Lock Patent |
| 1939 ENGINEERING AND RES CORP Propeller Patent |
| 1939 MARGON CORP Doll Eye And Lash Patent Print |
| 1939 GEN MOTORS CORP Grille Construction Patent |
| 1939 GEN MOTORS CORP Steering Column Lock Patent |
| 1939 RCA CORP Impulse Measuring Circuit Patent |
| 1939 BENDIX PROD CORP Shock Strut Patent Print |
| 1939 UNITED AIRCRAFT CORP Propeller Blade Patent |
| 1939 BENDIX PROD CORP Aircraft Patent Print Art |
| 1939 DRAVO CORP Boat Patent Print Art |
| 1939 FMC CORP Clamp Truck Patent Print Art |
| 1939 BENDIX PROD CORP Propeller Patent Print Art |
| 1939 BRIGGS & STRATTON CORP Lock Patent Print |
| 1939 BENDIX PROD CORP Airplane Patent Print Art |
| 1939 NAT BEARING METALS CORP Dust Guard Patent |
| 1939 ZAP DEV CORP Airfoil Mechanism Patent Print |
| 1939 WRIGHT AERONAUTICAL CORP Cowling Patent |
| 1939 NAYLOR PATENTS CORP Brake Beam Patent Print |
| 1939 BENDIX PROD CORP Brake Patent Print Art |
| 1939 GLOBE AMERICAN CORP Poultry Trough Patent |
| 1939 BENDIX PROD CORP Autogiro Rotor Hub Patent |
| 1939 UNITED AIRCRAFT CORP Propeller Drive Patent |
| 1939 U S MFG CORP Utensil Handle Patent Print |
| 1939 AVIAT MFG CORP Airplane Control Patent |
| 1939 LIONEL CORP Toy Aircraft Patent Print Art |
| 1939 DAWSON ALBERT Boat DRAVO CORP Patent Print |
| 1939 CURTISS WRIGHT CORP Wing Structure Patent |
| 1939 WINGFOOT CORP Airship Mooring Patent Print |
| 1939 HOUDAILLE HERSHEY CORP Bumper Guard Patent |
| 1939 EYEDOLL CORP Doll's Eye Construction Patent |
| 1939 DORNVAN CORP Tight Lock Car Coupler Patent |
| 1939 BENDIX AVIAT CORP Multiple Switch Patent |
| 1939 RCA CORP Velocity Measuring Device Patent |
| 1939 BREEZE CORP Bulkhead Door Patent Print Art |
| 1939 NOVADEL AGENE CORP Hand Truck Patent Print |
| 1939 ECLIPSE AVIAT CORP Aircraft Control Patent |