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| All Patents in class 411/436 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 135,898 | Feb. 18, 1873 | T. English | Screw Bolts and Nuts | ||
 | 413,316 | Oct. 22, 1889 | W.J. Dobson | Counterbore Auger Attachment | |
 | 447,775 | Mar. 10, 1891 | C.A. Higbee | Screw bolt and nut | |
 | 658,085 | Sep. 18, 1900 | C.A. Higbee | Screw-coupling | |