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| All Patents in class 175/202 | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,555X | Mar. 30, 1836 | A. Turney | Boring stones | stone boring and drilling machines | |
| 4,194 | Sep. 17, 1845 | R.A. Stratton, T.S. Speakman | Apparatus for Boring Rocks or Earth | stone boring and drilling machines | |
| 8,882 | Apr. 20, 1852 | N. Blake | Submarine Auger | auger bits | |
| 63,842 | Apr. 16, 1867 | C. Boernicke | Improvement in Wood-Boring Bits | drill bits | |
| 998,534 | Jul. 18, 1911 | J.C. Knuckles | Combined auger and reamer | ||