| All Patents in class 408/141 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 497,767 | May 23, 1893 | J.B. Clyne | Die or Tap Holder for Screw Machines | tap and die holders |
| 795,123 | Jul. 18, 1905 | R.G. Henry, D.M. Wright | Drill-spindle | drill presses |
| 808,981 | Jan. 02, 1906 | C.L. Goodrich | Tool Holder | lathe tool holders and tool posts |
| 809,257 | Jan. 02, 1906 | B.M. Hanson | Tool Holder | lathe tool holders and tool posts |
| 2,029,447 | Feb. 04, 1936 | H.M. Swain | Auger Bit | auger bits |
| 2,578,995 | Dec. 18, 1951 | M.H. Emrick | Tapping machine | tapping machines |
| 3,030,818 | Apr. 24, 1962 | A.I. Zagar | Positive drive tapping attachments | tapping machines |
| 3,178,739 | Apr. 20, 1965 | W.M. Ritter, H.R. Plummer | Double Float Tool Holder | milling machine tools |
| 5,642,969 | Jul. 01, 1997 | D.S. Strait | Portable Machine Tool | portable turning tools |
