| 1938 MUELLER EMIL Link Structure Patent Print |
| 1938 DE SEVERSKY Aircraft Structure Patent Print |
| 1938 IRWIN CHASE Boat Structure Patent Print Art |
| 1938 WARREN DONALD Toy Structure Patent Print |
| 1938 NEVILLE Aircraft Frame Structure Patent |
| 1938 MOSES Car Underframe Structure Patent Print |
| 1938 SCHWENTLER Unit Brake Structure Patent |
| 1938 SHORT Wheel Hub Lock Structure Patent Print |
| 1938 MABEE Automobile Lock Structure Patent |
| 1938 AXEL Railway Car Structure Patent Print Art |
| 1938 GEDDES Closure Equipped Structure Patent |
| 1938 BLESSIN Car Window Structure Patent Print |
| 1938 HALLQUIST Railway Pilot Structure Patent |
| 1938 WHITEHEAD & KALES CO Deck Structure Patent |
| 1938 ADOLF SAMBRAUS Airplane Structure Patent |
| 1938 AVIAT MFG CORP Tail Wheel Structure Patent |
| 1938 TATUM JOHN Car Roof Structure Patent Print |
| 1938 BELLANCA GIUSEPPE Wing Structure Patent |
| 1938 Doorway Structure For Boxcars Patent Print |
| 1938 ELECTRIC BOAT CO Boat Structure Patent |
| 1938 JUDD IRVING Deck Structure Patent Print Art |
| 1938 KRISTENSEN Bumper Guard Structure Patent |
| 1938 DRAIM Airplane Wing Structure Patent Print |
| 1938 HAWES Crossing Gate Structure Patent Print |
| 1938 NEW Locomotive Structure Art Print Patent |
| 1938 AMERICAN BRAKE CO Link Structure Patent |
| 1938 HALLQUIST Railway Truck Structure Patent |
| 1938 SPRINGER RAY Shim Structure Patent Print |
| 1938 AYER ROBERT Tail Wheel Structure Patent |
| 1938 MUSSEY DELAVAN Panel Structure Patent Print |
| 1938 HOKE Pilot And Coupler Structure Patent |
| 1938 THWAITS Vehicular Tank Structure Patent |
| 1938 MILLER Aeroplane Seat Structure Patent |
| 1938 LENTZ Locomotive Structure Patent Print Art |
| 1938 DE Aircraft Wing Structure Patent Print Art |
| 1938 ERNEST Airplane Wing Structure Patent Print |
| 1938 ANGELL THOMAS Car Structure Patent Print |
| 1938 FREDERICK WEINBERG Wheel Structure Patent |
| 1938 MOSES Railway Car Structure Patent Print |
| 1938 HEIL CO Vehicular Tank Structure Patent |
| 1938 GREGG COMPANY LTD Car Structure Patent |
| 1938 BARKLEY Aerofoil Structure Patent Print Art |