| All Patents in class 408/710 |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 572,099 | Dec. 01, 1896 | G. Bettcher | Safety Socket for Taps or Drills | tap and die holders |
| 1,512,231 | Oct. 21, 1924 | O.W. Mueller | Safety means for drilling machines | radial drill presses |
| 1,659,978 | Feb. 21, 1928 | D.C. Klausmeyer | Telescopic Guard System for Drills | drill press accessories |
| 1,721,740 | Jul. 23, 1929 | D.C. Klausmeyer | Shaft Guard | metalworking machine mechanisms |
| 1,987,979 | Jan. 15, 1935 | E. Sobolewski | Safety power traverse for radial drill heads | radial drill presses |
| 2,119,986 | Jun. 07, 1938 | A.J. Dremel | Electric motor | handheld power tools |
| 2,251,015 | Jul. 29, 1941 | K.F. Gallimore | Machine tool | horizontal boring mills |
| 2,319,551 | May 18, 1943 | R.H. McClellan, C.E. Linden | Hydraulic operating and control mechanism for machine tools | radial drill presses |
| 2,876,369 | Mar. 03, 1959 | O. Doerner | Portable power drill | handheld power tools |
| 2,887,695 | May 26, 1959 | A. Charlat | Rotary Tool Spindle Reversing Means | drill presses |
| 3,021,723 | Feb. 20, 1962 | R. Happe | Spindle locking means for portable tools | handheld power drills |
| 3,344,713 | Oct. 03, 1967 | F. Zankl | Drive Mechanism for Actuating a Movable Machine Member | milling machines |
| 3,366,012 | Jan. 30, 1968 | P.E. Richter | Machine Tool Guard Structure | metalworking machine mechanisms |
| 3,685,843 | Aug. 22, 1972 | A. Jacyno | Insulated chuck | handheld power drills |
| 3,824,890 | Jul. 23, 1974 | E.E. Johnson, W.D. Zettler | Chip Guard for Machine Tools | metalworking machine mechanisms |
