| All Patents in class 279/103 |
Patents 1 -
15
of 56
      |
| Number | Date | Patentee | Title | Type |
| 260,314 | Jun. 27, 1882 | G.V. Sheffield, J.A. Parks | Drill Chuck | drill press chucks |
| 288,957 | Nov. 20, 1883 | A. Söderström | Self Oiling Drill Chuck | ratchet drills |
| 292,725 | Jan. 29, 1884 | S.J. Wisdom | Jack | jack screws |
| 321,196 | Jun. 30, 1885 | U. Eberhardt, H.E. Eberhardt | Drilling-Machine | drill presses |
| 335,184 | Feb. 02, 1886 | W. Evans | Drilling-machine | drill presses |
| 364,080 | May 31, 1887 | T. Barber | Tool Holder | tool holders |
| 388,987 | Sep. 04, 1888 | G.W. McIntyre | Drill Chuck | drill press chucks |
| 591,913 | Oct. 19, 1897 | L.M. Devore | Handle For Screw Drivers Or Other Tools | screwdriver handles |
| 611,494 | Sep. 27, 1898 | G.F. Leonard | Twist-drill and socket | drill bits |
| 624,875 | May 09, 1899 | W.D. Arnott, B.E. Sawyer | replaceable screwdriver blade | screwdriver blades |
| 630,876 | Aug. 15, 1899 | W.C. Force | Tool Holder | lathe tool holders and tool posts |
| 717,199 | Dec. 30, 1902 | G.H. Hollm | Tapping Fixture | tap and die holders |
| 728,276 | May 19, 1903 | K.O. Muehlberg | Drill Chuck | drill press chucks |
| 874,027 | Dec. 17, 1907 | G. Nelson | Tool Holder | drilling and boring tool holders |
| 1,002,310 | Sep. 05, 1911 | W.L. Procunier | Safety-chuck | drill press chucks |
