| 1931 ADLER Traffic Signal Casing SAFETY Patent 49307 |
| 1931 STEPHANI Ornamental Design Casing Patent 32780 |
| 1931 PASK Casing Camera Design WOODS Patent 24447 |
| 1931 MEYER Amusement Machine Casing Patent 29509 |
| 1931 KURTZ Vending Machine Casing SHIELDS Patent 45213 |
| 1931 ZIMMERMAN Instrument Casing PULLEN Patent 25518 |
| 1931 REINHARDT Tire Casing Design Patent 12301 |
| 1931 ADLER Signals Support Casing SAFETY Patent 49308 |
| 1931 WHALEY Casing Radio Circuit TAYLOR Patent 23373 |
| 1931 SCHULSE Globe Clock Casing UNICLOX Patent 24448 |
| 1931 SINEL Gasoline Dispenser Casing Patent 49278 |
| 1931 REYNOLDS Refrigerating Casing Unit Patent 45207 |
| 1931 GREEN Stand Casing Dry Cleaning Unit Patent 45215 |
| 1931 FAGAN Casing Dispenser SHARPSVILLE Patent 49301 |
| 1931 KANTER Design Vending Machine Casing Patent 45214 |
| 1931 ADLER Head Casing Signals SAFETY Patent 49309 |
| 1931 HUGHES Fender Lamp Casing Vehicles Patent 49292 |
| 1931 HOFFMANN Desk Pencil Sharpener Casing Patent 41136 |
| 1931 STEINER Design Vending Machine Casing Patent 45200 |
| 1931 SMITH Golf Ball Casing Painting Tool Patent 45201 |