| All Patents in class 408/124 |
Patents 46 -
60
of 118
      |
| Number | Date | Patentee | Title | Type |
| 879,918 | Feb. 25, 1908 | W.S. Sherman | Boring-machine | wood drilling and boring |
| 882,290 | Mar. 17, 1908 | J. Bowen | Machine for Cutting Screws, &c. | screwcutting lathes |
| 913,172 | Feb. 23, 1909 | J.C. McGregor, J.G. Smith | Breast-drill | breast drills |
| 922,371 | May 18, 1909 | R. Winkler | Boring Machine | corner drills |
| 1,065,360 | Jun. 24, 1913 | H. Harris | Geared bit-stock | |
| 1,095,828 | May 05, 1914 | H. Dreses, E.J. Spaeth | Radial drill | radial drill presses |
| 1,171,670 | Feb. 15, 1916 | I.E. Sisk | Bit-stock | |
| 1,172,901 | Feb. 22, 1916 | C.H. Peck | Fluid-operated drills | pneumatic tools |
| 1,461,666 | Jul. 10, 1923 | J.E. Larsh | Clamping mechanism for radial drilling machines | radial drill presses |
| 1,475,153 | Nov. 20, 1923 | H. Athenas | Portable electric combination drill | handheld power drills |
| 1,503,206 | Jul. 29, 1924 | A.W. Ojerholm | Combination valve grinder and drill | valve and seat maintenance |
| 1,525,091 | Feb. 03, 1925 | A.C. Savidge | Multiple Drill Attachment | multiple spindle drilling heads |
| 1,559,944 | Nov. 03, 1925 | G.W. Emrick | Clutch construction for tapping attachments and the like | tapping heads and chucks |
| 1,564,460 | Dec. 08, 1925 | F.L. Young | Drill | handheld power drills |
| 1,575,953 | Mar. 09, 1926 | P. Toorks | Attachment for drilling machines | handheld power tool accessories |
