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| All Patents in class 411/423 | |||||
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| Number | Date | Patentee | Title | Type | |
| RE107 | Feb. 22, 1848 | T.J. Sloan | Improvement in wood-screws | ||
| 57,282 | Aug. 21, 1866 | T. Bowers | Improvement in Wooden Screws | ||
| 57,966 | Sep. 11, 1866 | T.T. Prosser | Improvement in screws | ||
| 658,085 | Sep. 18, 1900 | C.A. Higbee | Screw-coupling | industrial machine shaft couplings | |