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| Patents for Empire Portable Forge Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 144,986 | Nov. 25, 1873 | W. T.Kellogg | Improvement in blacksmiths' forges | |
| 279,651 | Jun. 19, 1883 | W. T.Kellogg | Device for converting motion | ||
| 389,305 | Sep. 11, 1888 | W. T.Kellogg | Portable forge | ||
| 443,284 | Dec. 23, 1890 | W. T.Kellogg | Mechanism for converting motion | ||
| 497,721 | May 16, 1893 | W. T.Kellogg | Boot-blacker's brush | ||
| 497,722 | May 16, 1893 | W. T.Kellogg | Boot-blacker's brush | ||