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| All Patents of Type: augers | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-181,604,010 | Mar. 23, 1816 | J. Sorby | Method of making an auger | augers | |
| 1,140 | May 03, 1839 | G. Page | Auger for boring earth | augers | |
| 158,985 | Jan. 19, 1875 | A.O. Schultz | Cotton Augers | augers | |
| 332,274 | Dec. 15, 1885 | P. Miller | Hollow auger | augers | |
| 424,565 | Apr. 01, 1890 | P. Miller | Auger | portable timber mortisers | |
| 432,705 | Jul. 22, 1890 | A.V. Hartle | Earth Auger | augers | |