4. Internal-combustion engines
  5. Charge forming device
  6. Combustible mixture ionization, ozonation, or electrolysis

Douglas Lee Arkfeld

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In-line catalyst

Internal-combustion engines – Charge forming device – Combustible mixture ionization – ozonation – or electrolysis
Patent

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In-line fuel conditioner

Internal-combustion engines – Charge forming device – Combustible mixture ionization – ozonation – or electrolysis
Reexamination Certificate

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