US Patent: 3,181
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Auger Single Lip Auger Bit & Means of Making
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Patentee:
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Raymond French (exact or similar names) - Derby, CT |
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Patent Dates:
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Granted: |
Jul. 20, 1843 |
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Jeff Joslin (dm)
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Description: |
Patent claim is for an auger bit with one pod deeper than the other, with the deeper pod terminating in the single cutting lip. Also Includes the die for creating the pods of different depths. |
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