US Patent: 333,170
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Auger Method of auger manufacture
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Patentee:
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George F. Stearns (exact or similar names) - Chester, CT |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Apr. 30, 1885 |
Granted: |
Dec. 29, 1885 |
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Jeff Joslin (dm)
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Description: |
Construction of auger bits with a wrought iron or steel shank which forms the core of a cast worm, or screw, and a separate tool steel blade. |
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