Achille Derazey

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Achille Derazey was an aero inventor at rue Peyrollières 16, Toulouse, Haute-Garonne, France

Patents whose inventor or applicant is Achille Derazey

  • Patent FR-1910-409229 (English title: Helicopter with variable propeller inclination, Filing date: 1909-09-27)
  • Patent FR-1910-412464 (English title: Helicopter with differential propellers, Filing date: 1910-01-29)


References

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