US Patent: 347,603
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| Gas Engine
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Patentees:
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| James Hodgkinson (exact or similar names) - Manchester, Lancashire County, England |
| John Dewhurst (exact or similar names) - Manchester, Lancashire County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 19, 1886 |
| Granted: |
Aug. 17, 1886 |
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Joel Havens
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Description: |
| Patented in England, 25 Mar 1884, #5,412. |
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