| Patents for John Richards |
Patents 31 -
42
of 42
      |
| Number | Date | Patentee | Title | Type |
| 143,532 | Oct. 07, 1873 | L.H. Berry, J. Richards | Improvement in tenoning-machines | tenoning machines |
| 144,411 | Nov. 11, 1873 | J. Richards | Improvement in tenoning-machines | tenoning machines |
| 159,279 | Feb. 02, 1875 | J. Richards, G. Richards | Improvement in boring-machines | drilling and boring |
| RE8,297 | Jun. 25, 1878 | J. Richards | Driving planer feed-rolls | wood planers |
| 219,307 | Sep. 02, 1879 | J. Richards | Micrometer Gage | micrometers |
| 258,120 | May 16, 1882 | J. Richards | Metal Planing Machine | metal planers |
| 258,121 | May 16, 1882 | J. Richards | Engine Lathe | engine lathes |
| 261,044 | Jul. 11, 1882 | J. Richards | Metal-drilling machines | drill presses |
| 287,326 | Oct. 23, 1883 | J. Richards | Drilling-machine | drill presses |
| 299,496 | May 27, 1884 | J. Richards | Metal Boring and Slotting Machine | vertical boring mills |
| 401,968 | Apr. 23, 1889 | J. Walker, J. Richards | Machine for driving mandrels, keys, &c. | |
| 404,305 | May 28, 1889 | J. Richards | Micrometer Gage | micrometers |
