| All Patents in class 408/97 |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 184,686 | Nov. 21, 1876 | J. Miller | Machines for Tapping Pipes Under Pressure | plumber |
| 437,047 | Sep. 23, 1890 | J.N. Sargent | Vise | bench vises |
| 468,031 | Feb. 02, 1892 | J.W. Ramsey | Saw Gummer | saw gummers |
| 517,023 | Mar. 27, 1894 | T.I. Brown | Metal Tapping or Drilling Machine | drill presses |
| 810,319 | Jan. 16, 1906 | R. Blazej | V Block | V blocks |
| 875,328 | Dec. 31, 1907 | D.S. Courtney | Woodworking-machine | spool or bobbin machines |
| 907,735 | Dec. 29, 1908 | C.C. Cain, Jr. | Drill-jig | drill and tap guides |
| 966,816 | Aug. 09, 1910 | F. Fischer | Boring machine | drilling and boring |
| 1,119,470 | Dec. 01, 1914 | H.B. Swantusch | V Block | V blocks |
| 1,292,620 | Jan. 28, 1919 | J.M. Luers | Center Drilling Jig | jigs and fixtures |
| 1,329,970 | Feb. 03, 1920 | H.J. Hauser | Drill-jig | drill and tap guides |
| 1,476,611 | Dec. 04, 1923 | G. HInes | V Block Workholder or Drill Jig | V blocks |
| 1,503,836 | Aug. 05, 1924 | J.J. Kunzer | Deep Drilling Machine | horizontal drilling machines |
| 1,791,532 | Feb. 10, 1931 | H. Hansen, E.L. Oberly | Semiautomatic Drill and Tapping Jig | jigs and fixtures |
| 2,215,369 | Sep. 17, 1940 | G.O. Gabriel | Metal Working Machine and Method | milling machines |
