| 2495107 | Roll grooving apparatus | |||
| 2368408 | Carriage control for lathes | |||
| 2367137 | Machine for grinding and turning brake drums | |||
| 2257493 | Attachment for machine tools and the like | |||
| 2231431 | Phonograph record shaving machine | |||
| 2181643 | Record resurfacing machine | |||
| 2124348 | Hydraulic lathe transmission | |||
| 1916267 | Apparatus for grinding gun barrels and cylindrical surfaces | |||
| 1873157 | Automatic lathe | |||
| 1820717 | Machine for trimming metal parts | |||
| 1818288 | Grinding machine | |||
| 1695359 | Motor-control mechanism for machine tools | |||
| 1505282 | Surface grinder | |||
| 1196024 | N/A |