All Patents in class 74/57 |
Patents 1 -
10
of 20
      |
Picture | Number | Date | Patentee | Title |
 | 30,523 | Oct. 23, 1860 | J.J. Watson | Method of adjusting the rake of reciprocating saws |
| 42,336 | Apr. 19, 1864 | E.D. Ashe | Propeller Engine |
| 174,590 | Mar. 07, 1876 | H. Tesseyman | Valve Gear For Direct-Acting Engines |
| 439,418 | Oct. 28, 1890 | A.H. Morton | Grinding Machine |
 | 515,327 | Feb. 27, 1894 | E.A. Eggert | Screw-driver |
 | 942,571 | Dec. 07, 1909 | J.A. Leland | Spiral screw-driver |
 | 1,103,479 | Jul. 14, 1914 | R.S. Brown | Spindle-adjusting mechanism |
| 1,134,085 | Mar. 30, 1915 | J.W. Kroeze | Sanding-machine |
 | 1,173,574 | Feb. 29, 1916 | G.D. Hayden | Automatic screw-machine |
| 1,284,108 | Nov. 05, 1918 | C.A. Hultquist | Drilling Machine |