US Patent: 193,437
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| Improvement in machines for grinding mower and reaper knives
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Patentees:
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| Edward J. Worcester (exact or similar names) - Worcester, MA |
| Vernon F. Prentice (exact or similar names) - Worcester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 18, 1877 |
| Granted: |
Jul. 24, 1877 |
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Jeff Joslin
Vintage Machinery entry for E. J. Worcester
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Description: |
| In 1877 E. J. Worcester was operating under his own name and Vernon F. Prentice was establishing Prentice Bros. with Benjamin W. Prentice. |
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