US Patent: 505,751
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| Gas or Vapor Engine
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Patentee:
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| Bertram Chatterton (exact or similar names) - London, Middlesex County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 29, 1892 |
| Granted: |
Sep. 26, 1893 |
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Joel Havens
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Description: |
| Patented in England, 01 Apr 1892, #6,284. |
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