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| Patents for John Williams | |||||
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| Number | Date | Patentee | Title | Type | |
| 536X | Mar. 23, 1804 | J. Williams | Inclined Plane, Statical Wheel | inclined planes | |
| 3,174X | Feb. 17, 1820 | J. Williams | Makring spruce beer | ||
| 5,040X | Mar. 15, 1828 | J. Williams | Construction of wash stands | ||
| 36,829 | Nov. 04, 1862 | G.W. Schramm, R. Boeklen | Improvement in Hammers | hammers | |
| 49,670 | Aug. 29, 1865 | J. Williams | Improvement in Try Squares | try squares | |
| 282,704 | Aug. 07, 1883 | L. Cosgrove | Universal Milling Machine | milling machines | |