| 1938 ADLAKE CO Sash Construction Patent Print |
| 1938 BERLINER Aircraft Construction Patent Print |
| 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 GEORGE Trailer Tank Construction Patent |
| 1938 ZAPARKA EDWARD Flap Construction Patent |
| 1938 COOPER Vehicle Body Construction Patent |
| 1938 ROBBINS Diving Board Construction Patent |
| 1938 LARSEN Vehicle Body Construction Patent |
| 1938 ENTERPRISE MFG CO Float Construction Patent |
| 1938 ADLAKE CO Window Construction Patent Print |
| 1938 GERLING Doll Eye Construction Patent Print |
| 1938 VERHAGEN Window Construction Patent Print |
| 1938 ANDERSON Louver Construction Patent Print |
| 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 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 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 BOWEN JOHN Watch Construction Patent Print |
| 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 KLEMM Aircraft Construction Patent Print |
| 1938 JOSEPH Automobile Body Construction Patent |
| 1938 SHULMAN MAX Cage Construction Patent Print |
| 1938 DYCK KREIDER Construction Toy Patent Print |
| 1938 PAULSON Toy Building Construction Patent |
| 1938 ADAMS HERMAN Switch Construction Patent |
| 1938 ZAP DEV CORP Flap Construction Patent Print |
| 1938 VERHAGEN Sash Construction Patent Print Art |
| 1938 GALBRAITH Lifeboat Construction Patent |
| 1938 HATHORN CHARLES Tank Construction Patent |
| 1938 HOLT THOMAS Window Construction Patent |
| 1938 BOLLSTROM Folding Porch Construction Patent |
| 1938 NICKERSON Aeroplane Construction Patent |
| 1938 RIDDELL JOHN Ball Construction Patent Print |
| 1938 FRANK House Car Construction Patent Print |
| 1938 ROBINS Toy Construction Kit Patent Print |
| 1938 MILLER Switch Construction Patent Print Art |
| 1938 AXE ROY Window Construction Patent Print |
| 1938 BELLANCA Airplane Construction Patent Print |
| 1938 PFLUEGER Float Construction Patent Print |