US Patent: 371,793
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| Gas Engine
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Patentees:
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| Albert Schmid (exact or similar names) - Allegheny, PA |
| Charles Beckfeld (exact or similar names) - Reserve, Allegheny County, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 29, 1887 |
| Granted: |
Oct. 18, 1887 |
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Joel Havens
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