| Patents for Oakley S. Walker |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
| | 282,809 | Aug. 07, 1883 | O.S. Walker | Ratchet Drill |
 | 411,845 | Oct. 01, 1889 | O.S. Walker | Drill-grinding machine |
 | 425,839 | Apr. 15, 1890 | O.S. Walker | Twist-drill-grinding machine |
 | 521,836 | Jun. 26, 1894 | O.S. Walker | Bearing for emery-wheels |
 | 564,296 | Jul. 21, 1896 | O.S. Walker | Magnetic chuck |
 | 607,306 | Jul. 12, 1898 | O.S. Walker | Twist-drill-grinding machine |
 | 614,190 | Nov. 15, 1898 | O.S. Walker | Magnetic chuck |
 | 643,927 | Feb. 20, 1900 | O.S. Walker | Drill-grinder |
 | 651,908 | Jun. 19, 1900 | O.S. Walker | Magnetic Chuck |
| | 1,180,457 | Apr. 25, 1916 | O.S. Walker | Magnetic Chuck |
