US Patent: 505,844
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| Auger
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Patentee:
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| Azariah Yeldon Pearl (exact or similar names) - West Lebanon, ME |
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Patent Dates:
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| Applied: |
May 17, 1893 |
| Granted: |
Oct. 03, 1893 |
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Kirk Eppler
"Vintage Machinery" entry for Pearl Square Hole Auger Manufacturing Co.
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Description: |
| An example is reported, labeled "MADE BY THE PEARL SQUARE AUGER MFG CO. NEW YORK. USA. PAT OCT 3 '93, AUG 11 '96, JUNE 18 '98." These dates correspond, respectively, to patents 505,844, 606,575, and 788,941. |
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