US Patent: 5,036
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Wood auger
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Patent Dates:
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Granted: |
Mar. 27, 1847 |
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Jeff Joslin (dm)
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Description: |
The focus of this patent is on the "graduated twist" along the length of the bit. The claim is that this provides ample material for forming cutting lips and spurs, while easing passage of the chips as they rise up through the pods. |
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