Stefan Kiefer

3 Patents

• US123290542025

  Method of Spreading Granular Material

  Amazonen-werke H. Dreyer SE & Co. KG

  0 cites
• US121611082024

  Agricultural Spraying Device

  Amazonen-werke H. Dreyer SE & Co. KG

  0 cites
• US120045052024

  Agricultural Distribution Device

  AMAZONEN-WERKE H. DREYER SE & Co. KG

  0 cites