| All Patents in class 74/57 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 30,523 | Oct. 23, 1860 | J.J. Watson | Method of adjusting the rake of reciprocating saws | reciprocating sawmills |
| 38,715 | May 26, 1863 | R. Porter | Improvement in air-pumps | air pumps |
| 42,336 | Apr. 19, 1864 | E.D. Ashe | Propeller Engine | rotary steam engines |
| 174,590 | Mar. 07, 1876 | H. Tesseyman | Valve Gear For Direct-Acting Engines | steam engine valve gear |
| 439,418 | Oct. 28, 1890 | A.H. Morton | Grinding Machine | grinding machines |
| 515,327 | Feb. 27, 1894 | E.A. Eggert | Screw-driver | spiral screwdrivers |
| 942,571 | Dec. 07, 1909 | J.A. Leland | Spiral screw-driver | spiral screwdrivers |
| 1,103,479 | Jul. 14, 1914 | R.S. Brown | Spindle-adjusting mechanism | turret lathes |
| 1,134,085 | Mar. 30, 1915 | J.W. Kroeze | Sanding-machine | sanding machines |
| 1,173,574 | Feb. 29, 1916 | G.D. Hayden | Automatic screw-machine | screw machines |
| 1,284,108 | Nov. 05, 1918 | C.A. Hultquist | Drilling Machine | |
| 1,686,383 | Oct. 02, 1928 | D.C. Klausmeyer | Cam Controlled Twenty-Four Speed Mechanism | metalworking speed changing mechanisms |
| 1,871,020 | Aug. 09, 1932 | A. Wyzenbeek | Reciprocating tool | |
| 2,188,158 | Jan. 23, 1940 | G.L. Rock | Screw driver | spiral screwdrivers |
| 2,301,413 | Nov. 10, 1942 | D.K. Kilcup | Drive mechanism | spiral screwdrivers |
