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| All Patents in class 470/199 | |||||
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| Number | Date | Patentee | Title | Type | |
| 198,945 | Jan. 08, 1878 | J.M. Johnson | Improvement in collapsible screw-taps | taps and dies | |
| 216,023 | Jun. 03, 1879 | R.T. Crane | Improvement in Boring and Reaming Tools | tapered reamers | |
| 330,999 | Nov. 24, 1885 | R.C. Nugent | Screw Tap | taps and dies | |
| 1,034,724 | Aug. 06, 1912 | H. Mueller | Tool-shank | boring bars | |
| 1,613,577 | Jan. 04, 1927 | J.C. Fletcher | Die Cutting Machine | ||
| 2,813,280 | Nov. 19, 1957 | L.B. Huffman | Machine tool for drilling and tapping holes | tapping machines | |