| 1940 GEN MOTORS CORP Cover Support Patent Print |
| 1940 GEN MOTORS CORP Bumper Guard Patent Print |
| 1940 GEORGE SNYDER Bumper GEN MOTORS CORP Patent |
| 1940 GEN STEEL CASTINGS CORP Railway Container Car |
| 1940 GEN MOTORS CORP Robe Rail Mounting Patent |
| 1940 GEN TIME INSTR CORP Alarm Clock Patent |
| 1940 GEN MOTORS CORP Steering Column Lock Patent |
| 1940 GEN MOTORS CORP Grille Guard Patent Print |
| 1940 GEN MOTORS CORP Armature Support Patent |
| 1940 GEN ELECTRIC Time Switch Patent Print Art |
| 1940 GEN MOTORS CORP Switch Patent Print Art |
| 1940 GEN ELECTRIC Time Switch Alarm Patent Print |
| 1940 GEN ELECTRIC Novelty Pendulum Mechanism Art |
| 1940 GEN IND COMPANY Fishing Reel Patent Print |
| 1940 GEN ELECTRIC Switch Operating Mechanism Art |
| 1940 GEN ELECTRIC Control System Patent Print |
| 1940 GEN MOTORS CORP Bumper Patent Print Art |
| 1940 GEN TIME INSTR CORP Time System Patent |
| 1940 EXNER VIRGIL Bumper GEN MOTORS CORP Patent |
| 1940 HILL ROBERT Switch GEN MOTORS CORP Patent |
| 1940 GEN MOTORS CORP Sounding Signal Adjustment |