| All Patents in class 451/247 |
Patents 1 -
15
of 46
      |
| Number | Title | Classification(s) |
| RE733 | Improvement in grinding and polishing knives | 451/247 |
| 30,209 | Saw-grinding machine | 451/246, 451/247, 76/78.1 |
| 39,317 | Improvement in machines for grinding and polishing cutlery | 451/246, 451/247, 451/402 |
| 248,124 | Rotary spoke-feeding machine | 144/154, 451/247 |
| 295,705 | Button Machine | 193/44, 198/389, 198/442, 221/158, 451/247, 451/324, 79/10, 79/9 |
| 552,072 | Saw Swage | 29/38A, 408/25, 451/247, 79/1, 79/6 |
| 667,579 | Apparatus for Grinding and Smoothing Glass | 451/246, 451/247, 451/381, 451/396 |
| 679,611 | Spoke-finishing machine | 142/1, 451/239, 451/247, 451/306, 451/403, 451/65 |
| 718,578 | Tool Holder for Button Making Machines | 451/247, 79/8 |
| 730,882 | Automatic multispindle machine | 451/247, 470/108, 470/904, 82/122, 82/129 |
| 862,535 | Bobbin-notching machine | 144/14, 144/245.1, 451/247, 470/62 |
| 1,144,347 | Automatic spoke-sanding machine | 142/5, 451/247, 451/302, 451/308 |
| 1,548,563 | Means For Handling Articles | 221/212, 361/149, 451/143, 451/247, 451/292, 451/331, 451/333 |
| 1,597,748 | Wood Shaping Machine | 144/144.1, 144/154, 144/24.22, 144/24.23, 451/247, 451/249 |
| 1,723,128 | Centerless Grinder | 451/247, 451/407 |
