| Patents for Francis H. Richards |
Patents 1 -
15
of 83
      |
| Number | Date | Patentee | Title | Type |
| 150,356 | Apr. 28, 1874 | F.H. Richards | Traction-Engines | steam traction engines |
| 285,931 | Oct. 02, 1883 | F.H. Richards | Lathe for irregular forms | pattern lathes |
| 303,321 | Aug. 12, 1884 | F.H. Richards | Friction Clutch | industrial machine clutches |
| 305,234 | Sep. 16, 1884 | F.H. Richards | Gear Cutting Machine | gear making machines |
| 307,227 | Oct. 28, 1884 | F.H. Richards | Metal Turning Tool | lathe tools |
| 320,968 | Jun. 30, 1885 | F.H. Richards | Machine for Making Twist Drills | making drills and augers |
| 323,208 | Jul. 28, 1885 | F.H. Richards | Planer Table Driving Mechanism | metal planers |
| 331,443 | Dec. 01, 1885 | F.H. Richards | Blank-feeding mechanism | |
| 333,161 | Dec. 29, 1885 | F.H. Richards | Device for Converting Motion | industrial machine mechanisms |
| 352,004 | Nov. 02, 1886 | F.H. Richards | Saw | insertable saw teeth |
| 354,737 | Dec. 21, 1886 | F.H. Richards | Lathe Head | metal lathes |
| 366,187 | Jul. 05, 1887 | F.H. Richards | Shearing mechanism | paper cutting machines |
| 368,744 | Aug. 23, 1887 | W.N. Woodruff | Shaft-key | industrial machine mechanisms |
| 390,190 | Sep. 25, 1888 | F.H. Richards | Turret-lock | turret lathes |
| 397,389 | Feb. 05, 1889 | F.H. Richards | Implement Joint | pliers |
