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| All Patents in class 266/148 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,448 | Jun. 18, 1850 | J.F. Wood | Combination of a Guide-Tooth with an Inclined Scraper | road scrapers | |
| 529,476 | Nov. 20, 1894 | B. Brazelle | Process of and apparatus for smelting ores | ||