| Patents for Francis H. Richards |
Patents 1 -
15
of 83
      |
| Number | Title | Classification(s) |
| 150,356 | Traction-Engines | 180/8.3 |
| 285,931 | Lathe for irregular forms | 142/7, 144/38, 451/237, 451/392, 451/420 |
| 303,321 | Friction Clutch | 192/93R, 192/98 |
| 305,234 | Gear Cutting Machine | 409/22 |
| 307,227 | Metal Turning Tool | 125/11.01, 407/114, 82/158 |
| 320,968 | Machine for Making Twist Drills | 409/67 |
| 323,208 | Planer Table Driving Mechanism | 409/336 |
| 331,443 | Blank-feeding mechanism | 144/245.7, 271/158 |
| 333,161 | Device for Converting Motion | 74/436, 74/84R |
| 352,004 | Saw | 83/840 |
| 354,737 | Lathe Head | 475/330, 82/131, 82/142, 82/147 |
| 366,187 | Shearing mechanism | 144/146, 30/233, 83/600 |
| 368,744 | Shaft-key | 144/218, 279/76, 403/358 |
| 390,190 | Turret-lock | 188/69, 29/45, 74/813L |
| 397,389 | Implement Joint | 24/105, 30/266, 403/161, 76/114, 81/416 |
