| 2330171 | Television receiving system | |||
| 2351889 | Method and means for producing television images | |||
| 2357809 | Electrophotographic apparatus | |||
| 2372170 | Electron decelerator | |||
| 2400389 | Film containing iodine | |||
| 2447805 | Composite resinous sheet of birefringent material and method of making the same | |||
| 2478681 | Cathode-ray type sound recording system | |||
| 2541478 | Laminating process and products | |||
| 2549546 | Photographic electrical copying device | |||
| 2566998 | Bucky grid and method of making same |