US Patent: 450,151
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| Governor for steam-engines
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Patentee:
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| Jonas Harrold (exact or similar names) - Columbiana, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 26, 1890 |
| Granted: |
Apr. 14, 1891 |
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Joel Havens
"Vintage Machinery" entry for Enterprise Co.
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Description: |
| Inventor Harrold was deceased at the time the patent was applied for. He was likely related to the four brothers who between them founded and operated both Enterprise Manufacturing Co. and Crescent Machine Co. |
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