| 1938 BURT Safety Device For Automobiles Patent |
| 1938 BATKIN Game Device Patent 7505 |
| 1938 SHAW Display Device AD ART CRAFT Patent 20015 |
| 1938 KIRK Platform Scale Vending Device Patent 42265 |
| 1938 JACQUES Device For Emptying Tanks Patent |
| 1938 RAY Restraining Device For Animals Patent |
| 1938 ANNA Climbing Device For Skis Patent Print |
| 1938 ENGLAR Display Device PATENTS Patent 20026 |
| 1938 JOHN Device For Applying Sealing Wax Patent |
| 1938 ERBE Switch Device RECONSTRUCTION Patent 20025 |
| 1938 WOOD Safety Device For Aeroplanes Patent |
| 1938 MACDONALD Game Device Design PIG Patent 19257 |
| 1938 JERNS Traction Device For Skis Patent Print |
| 1938 HORN Tic-Tac-Toe Game Device Patent 8824 |
| 1938 RAYMOND Tail Device For Airplanes Patent |
| 1938 HAIDEMAN Aerating Device For Minnow Buckets |
| 1938 JERNS Traction Device Skis Patent22647 |
| 1938 KARL Safety Device For Aeroplanes Patent |
| 1938 GEGERFELDT Self Angling Fishing Device Patent 7018 |
| 1938 BARRON Brake Device For Sewing Machines Art |