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| All Patents in class 411/411 | |||||
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| Number | Date | Patentee | Title | Type | |
| 447,775 | Mar. 10, 1891 | C.A. Higbee | Screw bolt and nut | firefighting tools | |
| 534,164 | Feb. 12, 1895 | M.F. Larsh | Hand Screw-Clamp | hand screws | |
| 565,746 | Aug. 11, 1896 | J. Hartness | Screw Cutting Die | taps and dies | |
| 1,533,369 | Apr. 14, 1925 | B.H. Blood | Thread Gauge Construction | thread gages | |
| 1,719,801 | Jul. 02, 1929 | G.B. Duffield | Valve | valves | |