| 1929 JANDUS HERBERT Clamp GEN SPRING BUMPER CORP |
| 1929 GEN RAILWAY SIGNAL CO Magnetic Car Retarder |
| 1929 GEN Control Means Switch Machines Art Print |
| 1929 GEN MOTORS CORP Metal Running Board Patent |
| 1929 GEN ELECTRIC Truck Electrical Art Print |
| 1929 GEN MOTORS RES CORP Heater Lubricating Oil |
| 1929 GEN Train Control System Railroads Art |
| 1929 GEN MFG CORP Mechanical Ball Game Patent |
| 1929 GEN Train Dispatching System Railroads Art |
| 1929 GEN STEEL CASTINGS CORP Locomotive Structure |
| 1929 GEN SPRING BUMPER CORP Bumper Clamp Patent |
| 1929 GEN STEEL CASTINGS CORP Locomotive Spring Rigging |
| 1929 GEN STEEL CASTINGS CORP Pilot Beam Patent |
| 1929 GEN MOTORS CORP Automobile Shipping Art |
| 1929 GEN ELECTRIC Electric Train Line Coupling |
| 1929 GEN ELECTRIC Sewing Machine Take Up Patent |
| 1929 JANDUS HERBERT Bumper GEN SPRING BUMPER CORP |
| 1929 GEN SPRING BUMPER CORP Clamp Patent Print |
| 1929 GEN ELECTRIC Railway Truck Patent Print Art |
| 1929 GEN Electric Illumination Sewing Machines Like |
| 1929 GEN SPRING BUMPER CORP Bumper Patent Print |
| 1929 GEN ELECTRIC Power System Patent Print Art |
| 1929 GEN ELECTRIC Sewing Machine Patent Print |
| 1929 GEN MOTORS CORP Car Truck Construction Art |
| 1929 GEN MOTORS CORP Pressed Steel Running Board |
| 1929 GEN ELECTRIC System Ship Propulsion Art |
| 1929 GEN STEEL CASTINGS CORP Booster Motor Support |
| 1929 GEN SPRING BUMPER CORP Resilient Clamp Art |
| 1929 GEN ELECTRIC Electric Ship Propulsion |
| 1929 GEN ELECTRIC Structural Beam Method Making Same |
| 1929 GEN ELECTRIC Electric Ship Propulsion System |
| 1929 GEN ELECTRIC Restraining Device Patent |
| 1929 GEN STEEL CASTINGS CORP Railway Truck Art |
| 1929 GEN RAILWAY SIGNAL CO Light Signal Patent |
| 1929 GEN MOTORS CORP Decking Device Patent Print |
| 1929 GEN MOTORS CORP Lubricating System Motor Vehicles |
| 1929 GEN MOTORS CORP Special Truck Patent Print |
| 1929 Photo Gen Carranza Victorious Entrance Mexico City |
| 1929 Photo Mexico Revolt Gen Escobar Rebel Board Trains |
| 1929 Photo Mexico Revolt Gen Escobar Prepare Fed Attack |
| 1929 Gen John "Black Jack" Pershing Vintage WWI Photo |