US Patent: 532,219
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Hydrocarbon Engine
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Patentees:
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Carl Spiel (exact or similar names) - Cannstadt, Würtemberg, German Empire |
Adolf Spiel (exact or similar names) - Cannstadt, Würtemberg, German Empire |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Sep. 29, 1893 |
Granted: |
Jan. 08, 1895 |
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Joel Havens
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