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| All Patents in class 51/301 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,535 | Apr. 25, 1848 | J.G. Isham | Improvement in sand-paper | abrasives and holders | |
| 94,955 | Sep. 21, 1869 | R.J. Costain, N.B. Hadley | Improved compound for emery-wheels and oil-stones | ||
| 608,877 | Aug. 09, 1898 | D.J. Lattimore | Abrading-wheel | grinding wheels | |