| 1939 BETHLEHEM SHIPBUILDING CORP LT Metallic Structure |
| 1939 JACOB Transport Tank Structure Patent Print |
| 1939 SANDBERG Automobile Locking Structure Art |
| 1939 AMERICAN Locomotive Coupler Structure Art |
| 1939 STANDARD Pressed Metal Leg Structure Art |
| 1939 PLANTE ARTHUR Nest Structure Patent Print |
| 1939 WALSH Method Forming A Building Structure |
| 1939 ALFREDO Valve Structure Musical Instruments |
| 1939 DE SEVERSKY Aircraft Structure Patent Print |
| 1939 KNUTE Metallic Wall Structure Patent Print |
| 1939 GARDELLA Flagstaff Structure Patent Print |
| 1939 HILL Variable Airfoil Structure Patent |
| 1939 FLADER FREDRIC Wing Structure Patent Print |
| 1939 SEVERSKY AIRCRAFT CORP Aircraft Structure |
| 1939 GEN STEEL CASTINGS CORP Railway Truck Structure |
| 1939 DE Corrugated Sheet Metal Structure Patent |
| 1939 HERBERT Wall Structure Aircraft Compartments |
| 1939 REID Locomotive Coupler Structure Patent |
| 1939 ELLEN K WALSH Method Forming A Building Structure |
| 1939 PFLAGER Railway Truck Structure Patent |
| 1939 GLEDHILL Shed Structure Patent 6273 |
| 1939 HUGH Bumper Guard Structure Patent Print |
| 1939 JANDUS HERBERT Bumper Structure Patent |
| 1939 GRAY Expansible Building Structure Patent |
| 1939 JACOB Support Reel Structure Table Tennis Nets |
| 1939 SANDBERG Bumper Guard Structure Patent |
| 1939 BEMIS Building Structure Design Patent 23153 |
| 1939 HOUDAILLE HERSHEY CORP Bumper Guard Structure |
| 1939 HUNTINGTON Adjustable Crank Structure |
| 1939 HALLOWELL Pressed Metal Leg Structure Art |
| 1939 CURTISS WRIGHT CORP Wing Structure Patent |
| 1939 GRENEKER Display Head Structure Patent 39739 |
| 1939 AMERICAN STEEL FOUNDRIES Coupler Structure |
| 1939 KINNC EDMUND Coupler Structure Patent Print |
| 1939 STOUT Portable Building Structure Patent |
| 1939 HARVARD Support Reel Structure Table Tennis Nets |
| 1939 GEORGE C GUCKES Flagstaff Structure Patent |
| 1939 SCOTT Insulating Structure Patent Print Art |
| 1939 MARIO SOPRANI Valve Structure Musical Instruments |
| 1939 HUNTER Metallic Structure Patent Print Art |
| 1939 TOWNSEND Locomotive And Truck Structure Art |
| 1939 FLEETWINGS INC Corrugated Sheet Metal Structure |
| 1939 HOUDAILLE HERSHEY CORP Bumper Structure Art |
| 1939 BIRD ARCHER CO Insulating Structure Patent |