US Patent: 324,763
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Boring-Bit or Auger
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Patentee:
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Lucian M. Foster (exact or similar names) - Troy, NY |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
May 18, 1885 |
Granted: |
Aug. 18, 1885 |
USPTO (New site tip) Google Patents
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Jeff Joslin (dm)
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Description: |
The primary purpose of this bit is to provide for heat dissipation while boring wood at higher rates of speed. |
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