| 1950 VON SUTTKA Rudder Structure Patent Print |
| 1950 FLINT Cushioning Structure Patent Print Art |
| 1950 LAMB Obstruction Lighting Structure Patent |
| 1950 KENNELLY Oscillating Light Structure Patent |
| 1950 SCHWENDLER Airplane Wing Structure Patent |
| 1950 MARTIN Collapsible Structure Patent Print |
| 1950 WINGFOOT CORP Pneumatic Structure Patent |
| 1950 TRAVILLA Railway Pilot Structure Patent |
| 1950 JOHN Journal Bearing Structure Patent Print |
| 1950 HARDMAN RALPH Boat Structure Patent Print |
| 1950 STURTEVANT Pneumatic Structure Patent Print |
| 1950 SCHLESINGER Corner Structure Patent Print |
| 1950 RATAICZAK FRANCIS Metal Structure Patent |
| 1950 BURNETT Seat And Bed Structure Patent Print |
| 1950 TRAVILLA Railway Truck Structure Patent |
| 1950 TWENEY Frame Structure For Airplanes Patent |
| 1950 EKHOLM Railway Brake Beam Structure Patent |
| 1950 GEN MOTORS CORP Metal Structure Patent |
| 1950 HARDMAN Boat Structure Patent Print Art |
| 1950 FLINT Resilient Seat Structure Patent Print |