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| All Patents in class 83/686 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 104,769 | Jun. 28, 1870 | I.P. Richards | Metal Punch | ||
| RE4,228 | Jan. 03, 1871 | I.P. Richards | Punching Metal | ||
 | 978,506 | Dec. 13, 1910 | E.B. Stimpson | Punching-machine | |
| 3,062,083 | Nov. 06, 1962 | J.J. Strnad | Interchangeable die sets | ||