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| All Patents in class 470/87 | |||||
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| Number | Date | Patentee | Title | Type | |
| 115,451 | May 30, 1871 | J.N. Durrell | Improvement in machines for tapping nuts | nut or bolt making machines | |
| 142,511 | Sep. 02, 1873 | S.W. Putnam, Jr. | Improvement in machines for tapping nuts | nut or bolt making machines | |
| 432,522 | Jul. 22, 1890 | G.J. Forrey | Nut Machine | nut or bolt making machines | |
| 1,127,754 | Feb. 09, 1915 | J.J. Grant | Nut-machine | nut or bolt making machines | |