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| All Patents in class 425/352 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 4,464X | Jun. 09, 1826 | E. Fisk | Machine for moulding tile, brick, etc. | ||
 | 1,849,027 | Mar. 08, 1932 | R.J. Pardee | Briquetting machine | |
| 3,098,261 | Jul. 23, 1963 | J.J. Littley, R. Burns | Powdered metal compacting press | ||