| All Patents in class 408/710 |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
| | 572,099 | Dec. 01, 1896 | G. Bettcher | Safety Socket for Taps or Drills |
 | 1,512,231 | Oct. 21, 1924 | O.W. Mueller | Safety means for drilling machines |
| | 1,659,978 | Feb. 21, 1928 | D.C. Klausmeyer | Telescopic Guard System for Drills |
| | 1,721,740 | Jul. 23, 1929 | D.C. Klausmeyer | Shaft Guard |
| | 1,987,979 | Jan. 15, 1935 | E. Sobolewski | Safety power traverse for radial drill heads |
 | 2,119,986 | Jun. 07, 1938 | A.J. Dremel | Electric motor |
 | 2,251,015 | Jul. 29, 1941 | K.F. Gallimore | Machine tool |
 | 2,319,551 | May 18, 1943 | R.H. McClellan, C.E. Linden | Hydraulic operating and control mechanism for machine tools |
 | 2,876,369 | Mar. 03, 1959 | O. Doerner | Portable power drill |
| | 2,887,695 | May 26, 1959 | A. Charlat | Rotary Tool Spindle Reversing Means |
