| All Patents in class 74/423 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 6,943X | Feb. 27, 1832 | J.H. Corey | Portable Horse Power | animal powered apparatus |
| 31,595 | Mar. 05, 1861 | J. Griffin | Mode of Regulating the Speed of Vehicles Moved by Mechanical Power | steam carriages |
| 138,166 | Apr. 22, 1873 | J. King | Improvement in grain-drills | crop planters |
| 191,815 | Jun. 12, 1877 | D. Powers | Bit-stock with gear-train multiplier | geared braces |
| 305,054 | Sep. 16, 1884 | E.B. Dake, W.F. Dake | Bit-brace (geared) | geared braces |
| 321,196 | Jun. 30, 1885 | U. Eberhardt, H.E. Eberhardt | Drilling-Machine | drill presses |
| 461,622 | Oct. 20, 1891 | E.W. Ross | Carrier attachment for feed-cutters | |
| 797,101 | Aug. 15, 1905 | W.W. Dingee | Portable Horse Power | animal powered apparatus |
| 930,620 | Aug. 10, 1909 | J.R. Sandberg | Combined breast-drill and valve-grinder | breast drills |
| 1,017,242 | Feb. 13, 1912 | A.B. Browne | Combined Breast Drill and Valve Grinder | combination tools |
| 1,259,343 | Mar. 12, 1918 | W.J. Bayrer | Belt-gearing | drill presses |
| 1,368,295 | Feb. 15, 1921 | W.T. Sears | Drive mechanism for drilling-machines | radial drill presses |
| 1,420,635 | Jun. 27, 1922 | A.C. Klopper | Wrench | socket wrenches |
| 2,341,981 | Feb. 15, 1944 | H. Davids | Shaft Coupling Mechanism for Internal Combustion Engines | opposed piston engines |
