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| Patents for Forstner, Sharp & Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 155,148 | Sep. 22, 1874 | B. Forstner | Forstner Bit | drill bits | |
| 280,026 | Jun. 26, 1883 | B. Forstner | Shell Type Bit with Recessed Lip | drill bits | |