US Patent: 623,361
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| Oscillating Gas or Steam Engine
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Patentee:
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| James H. Frew (exact or similar names) - New Castle, Lawrence County, PA |
| USPTO Classifications: |
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123/18A, 123/18R, 123/195HC, 123/197.1, 123/223, 123/65B, 123/70R, 123/70V, 29/888, 74/160, 92/120, 92/138, 92/144
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| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 02, 1897 |
| Granted: |
Apr. 18, 1899 |
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Joel Havens
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Description: |
| Claim:
his invention relates to certain new and useful improvements in gas-engines, and has for its object to improve the construction of such engines so as to render the same more efficient and certain in their operation. |
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