| 1938 Construction of Small Greenhouse Leaflet 35 |
| 1938 PENNSYLVANIA Locomotive Front End Construction |
| 1938 ADLAKE CO Sash Construction Patent Print |
| 1938 BERLINER Aircraft Construction Patent Print |
| 1938 KEMP BROS PACKING CO Switch Construction |
| 1938 YOUNGSTOWN STEEL DOOR CO House Car Construction |
| 1938 ANDERSON Journal Box Truck Frame Construction |
| 1938 SUN RUBBER COMPANY Doll Construction Patent |
| 1938 O C DURYEA CORP Car Construction Patent |
| 1938 STONE Propeller Construction Patent Print |
| 1938 SHIPLEY Method Of Car Construction Patent |
| 1938 CHICAGO Running Board Saddle Construction |
| 1938 GEORGE Trailer Tank Construction Patent |
| 1938 ZAPARKA EDWARD Flap Construction Patent |
| 1938 COOPER Vehicle Body Construction Patent |
| 1938 ROBBINS Diving Board Construction Patent |
| 1938 BEAUTEE FIT INC Brassiere Construction Art |
| 1938 LARSEN Vehicle Body Construction Patent |
| 1938 WOODALL INDUSTRIES INC Trim Panel Construction |
| 1938 OM EDWARDS CO INC Window Construction Art |
| 1938 ENTERPRISE MFG CO Float Construction Patent |
| 1938 HOKE Locomotive Front End Construction Art |
| 1938 HAWKSWORTH Running Board Saddle Construction |
| 1938 HAWKSWORTH Hatch Frame Construction Car Roofs |
| 1938 ADLAKE CO Window Construction Patent Print |
| 1938 GERLING Doll Eye Construction Patent Print |
| 1938 WALFRED Undercarriage Construction Aircraft |
| 1938 VERHAGEN Window Construction Patent Print |
| 1938 ANDERSON Louver Construction Patent Print |
| 1938 PAULSON Roof Gable Construction Toy Buildings |
| 1938 DURYEA OTHO Car Construction Patent Print |
| 1938 ZINSER Trim Panel Construction Patent Print |
| 1938 EDWARDS Window Construction Patent Print |
| 1938 BECKER Brassiere Construction Patent Print |
| 1938 CHICAGO Hatch Frame Construction Car Roofs |
| 1938 SPONSLER Ship Construction Patent Print Art |
| 1938 LOWER MELVIN Doll Construction Patent Print |
| 1938 PETERSEN Shutter Construction Patent Print |
| 1938 TRANSIT RES CORP Step Construction Patent |
| 1938 FIRNER Airplane Construction Patent Print |
| 1938 KRAEMER Window Construction Patent Print |
| 1938 KJOLSETH Vehicle Truck Construction Patent |
| 1938 HARBIT Parachute Construction Patent Print |
| 1938 KEARFOTT ENGINEERING I Window Construction |
| 1938 RYERSON HAYNES INC Shutter Construction Art |
| 1938 ZAND Airplane Door Construction Patent |
| 1938 FRANK Railway Car Construction Patent Print |
| 1938 REINHOLD Boat Construction Patent Print Art |
| 1938 GEN ELECTRIC Louver Construction Patent |
| 1938 BUTLER MANUFACTURING CO Trailer Tank Construction |
| 1938 BOWEN JOHN Watch Construction Patent Print |
| 1938 OTTO Accordion Reed Block Construction Art |
| 1938 EVERETT Piano Casing Top Construction Art |
| 1938 HIRSHFELD Step Construction Patent Print |
| 1938 MATTESON Billiard Table Construction Patent |
| 1938 FRANK KOPP Slip Construction Patent Print |
| 1938 MCDONNELL Aircraft Construction Patent |
| 1938 CHAFFEE Window Construction Patent Print |
| 1938 SPERRY GYROSCOPE INC Airplane Door Construction |
| 1938 KLEMM Aircraft Construction Patent Print |
| 1938 STORY CLARK PIANO Piano Casing Top Construction |
| 1938 AVERY Vehicle Body Chassis Construction Art |
| 1938 SYRACUSE TRUST Window Construction Art |
| 1938 CURTISS WRIGHT CORP Tank Construction Art |
| 1938 JOSEPH Automobile Body Construction Patent |
| 1938 SHULMAN MAX Cage Construction Patent Print |
| 1938 GEN ELECTRIC Journal Box Truck Frame Construction |
| 1938 DYCK KREIDER Construction Toy Patent Print |
| 1938 PAULSON Toy Building Construction Patent |
| 1938 GLENN L MARTIN CO Aircraft Construction Art |
| 1938 HENRY A HILL Folding Porch Construction Art |
| 1938 ADAMS HERMAN Switch Construction Patent |
| 1938 ZAP DEV CORP Flap Construction Patent Print |
| 1938 VERHAGEN Sash Construction Patent Print Art |
| 1938 YOUNG Stage Construction Theaters Like Art |
| 1938 GALBRAITH Lifeboat Construction Patent |
| 1938 WURLITZER CO Accordion Reed Block Construction |
| 1938 LEON Construction Fuselages Vehicle Bodies Like |
| 1938 HATHORN CHARLES Tank Construction Patent |
| 1938 TODT Valve Construction Wind Musical Instruments |
| 1938 EDWARDS Rotatable Window Construction Art |
| 1938 HOLT THOMAS Window Construction Patent |
| 1938 IRVING AIR CHUTE GB LTD Parachute Construction |
| 1938 BOLLSTROM Folding Porch Construction Patent |
| 1938 NICKERSON Aeroplane Construction Patent |
| 1938 YOUNGSTOWN STEEL DOOR CO Railway Car Construction |
| 1938 RIDDELL JOHN Ball Construction Patent Print |
| 1938 FRANK House Car Construction Patent Print |
| 1938 FORD MOTOR CO Automobile Body Construction |
| 1938 AMERICAN CAR FOUNDRY CO Method Car Construction |
| 1938 ROBINS Toy Construction Kit Patent Print |
| 1938 AMERICAN PLAYGROUND COM Diving Board Construction |
| 1938 OM EDWARDS INC Rotatable Window Construction |
| 1938 GEN ELECTRIC Vehicle Truck Construction Art |
| 1938 MILLER Switch Construction Patent Print Art |
| 1938 AXE ROY Window Construction Patent Print |
| 1938 BELLANCA Airplane Construction Patent Print |
| 1938 OM Railway Car Trap Door Folding Step Construction |
| 1938 PFLUEGER Float Construction Patent Print |
| 1938 Middletown Portland Ct Bridge Construction Booklet |