| Patents for Oakley S. Walker |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 282,809 | Aug. 07, 1883 | O.S. Walker | Ratchet Drill | hand drills |
| 411,845 | Oct. 01, 1889 | O.S. Walker | Drill-grinding machine | drill grinders |
| 425,839 | Apr. 15, 1890 | O.S. Walker | Twist-drill-grinding machine | drill grinders |
| 521,836 | Jun. 26, 1894 | O.S. Walker | Bearing for emery-wheels | bench or pedestal grinders |
| 564,296 | Jul. 21, 1896 | O.S. Walker | Magnetic chuck | magnetic chucks |
| 607,306 | Jul. 12, 1898 | O.S. Walker | Twist-drill-grinding machine | drill grinders |
| 614,190 | Nov. 15, 1898 | O.S. Walker | Magnetic chuck | magnetic chucks |
| 643,927 | Feb. 20, 1900 | O.S. Walker | Drill-grinder | drill sharpening machines |
| 651,908 | Jun. 19, 1900 | O.S. Walker | Magnetic Chuck | magnetic chucks |
| 1,180,457 | Apr. 25, 1916 | O.S. Walker | Magnetic Chuck | magnetic chucks |
| 1,180,680 | Apr. 25, 1916 | O.S. Walker | Apparatus for Controlling Magnetic Chucks | magnetic chucks |
| 1,222,052 | Apr. 10, 1917 | O.S. Walker | magnetic chuck | magnetic chucks |
