| 1938 GEN STEEL CASTINGS CORP Spring Assembly Art |
| 1938 GEN Automatic Train Control System Art |
| 1938 GEN ELECTRIC Controllable Pitch Propeller Like |
| 1938 GEN MOTORS CORP Loading Automobile Bodies Shipment |
| 1938 KEARSLEY WILLIAM Timer GEN ELECTRIC Patent |
| 1938 LOCKE JOHN Mine Car GEN STEEL CASTINGS CORP |
| 1938 GEN ELECTRIC Control Device Patent Print |
| 1938 GEN RAILWAY SIGNAL CO Train Describer System |
| 1938 GEN ELECTRIC Restraint Device Patent Print |
| 1938 GEN ELECTRIC Railway Truck Patent Print Art |
| 1938 GEN TEXTILE MILLS INC Parachute Patent |
| 1938 GEN ELECTRIC Timer Patent Print Art |
| 1938 GEN Closure Equipped Structure Art Print |
| 1938 GEN RAILWAY SIGNAL CO Railway Signaling System |
| 1938 GEN MOTORS CORP Brake Slack Adjuster Patent |
| 1938 GEN MOTORS CORP Sound Signal Patent Print |
| 1938 GEN ELECTRIC Controllable Pitch Propeller |
| 1938 GEN MOTORS CORP Railway Car Truck Patent |
| 1938 GEN ELECTRIC Sound Producing Device Patent |
| 1938 GEN RAILWAY SIGNAL CO Railway Track Circuit Relay |
| 1938 GEN Railway Traffic Controlling System Art |
| 1938 GEN STEEL CASTINGS CORP Railway Truck Structure |
| 1938 GEN STEEL CASTINGS CORP Railway Car Underfame |
| 1938 GEN RAILWAY SIGNAL CO Alternating Current Relay |
| 1938 GEN Continuous Inductive Train Control System |
| 1938 GEN MOTORS CORP Electric Switch Patent |
| 1938 GEN ELECTRIC Time Switch Patent Print Art |
| 1938 GEN ELECTRIC Louver Construction Patent |
| 1938 GEN MOTORS CORP Journal Box Patent Print |
| 1938 GEN Railway Vehicle Truck Body Interlock |
| 1938 GEN MOTORS CORP Refrigerating Apparatus Art |
| 1938 GEN ELECTRIC Rail Inspection Apparatus Art |
| 1938 GEN ELECTRIC Journal Box Truck Frame Construction |
| 1938 GEN Highway Crossing Signaling System Art |
| 1938 GEN MOTORS CORP Freight Car Loading Art |
| 1938 GEN Polar Impulse Repeater System Art Print |
| 1938 GEN TIME INSTR CORP Automobile Clock Patent |
| 1938 GEN RAILWAY SIGNAL CO Railway Track Circuit |
| 1938 GEN MOTORS CORP Railway Brake Rigging Art |
| 1938 GEN RAILWAY SIGNAL CO Signaling System Railroads |
| 1938 GEN ELECTRIC Aircraft Patent Print Art |
| 1938 GEN STEEL CASTINGS CORP Railway Pilot Structure |
| 1938 GEN Polar Impulse Repeating System Art |
| 1938 GEN STEEL CASTINGS CORP Railway Truck Art |
| 1938 GEN RAILWAY SIGNAL CO Track Circuit Patent |
| 1938 GEN Highway Crossing Signal System Art |
| 1938 GEN ELECTRIC Vehicle Truck Construction Art |
| 1938 GEN STEEL CASTINGS CORP Mine Car Patent |
| 1938 GEN RAILWAY SIGNAL CO Track Circuit Railroads |
| 1938 GEN MOTORS CORP Sounding Signal Art Print |
| Life Magazine 5/30/1938 Gen Jan Syrovy Czech 2 Ton Tony |
| 1938 75th anniv Gen. Ullysses S. Grant appointment |