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| All Patents in class 425/351 | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,605X | Apr. 21, 1836 | G.H. (Halloway) | Brick machine | brick and tile making machines | |
| 50,333 | Oct. 10, 1865 | M. Chittenden | Improved machine for pressing brick | manufacturing bricks and tiles | |
| 63,342 | Mar. 26, 1867 | T.J. Wells | Improved peat machine | ||
| 83,010 | Oct. 13, 1868 | P. Walrath, J. Walrath | Improved brick-machine | brick and tile making machines | |
| 1,971,850 | Aug. 28, 1934 | W. Ernst | Press | hydraulic presses | |