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| Patents for Oscar Barnett Foundry Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| D30,196 | Feb. 14, 1899 | O. Barnett, Jr. | Design for a cope or drag for molders' flasks | foundry casting apparatus | |
| 871,959 | Nov. 26, 1907 | A.J. Rosentreter | Door-holder | door and window hardware | |
| 972,751 | Oct. 11, 1910 | E.C. Clark | Chain grate | solid fuel stokers | |
| 1,173,307 | Feb. 29, 1916 | E.C. Clark, W.P. Reiboldt | Chain-grate stoker | solid fuel stokers | |
| 1,231,325 | Jun. 26, 1917 | J. Batteer | Mechanical stoker | solid fuel stokers | |