Improvements made to the raising device and turning machines plowing and in particular of the plough polysocs or the like.

• 1. 一种便于对犁杆外侧的土壤进行去除的农业机械用犁地机 [P] . 中国专利： CN109121494B . 2021.12.10
• 2. 一种便于对犁杆外侧的土壤进行去除的农业机械用犁地机 [P] . 中国专利： CN109121494A . 2019-01-04
• 3. Improvements made to the raising device and turning machines plowing and in particular of the plough polysocs or the like [P] . 法国专利： FR44481E . 1935-02-02

  机译： 耕作设备和翻耕机的耕作，尤其是犁地犁等的改进

• 4. Improvements made to the raising device and turning machines plowing and in particular of the plough polysocs or the like [P] . 法国专利： FR43746E . 1934-08-09

  机译： 耕作设备和翻耕机的耕作，尤其是犁地犁等的改进

• 5. Improvements made to the raising device and turning machines plowing, and in particular of the plough polysocs or the like [P] . 法国专利： FR755752A . 1933-11-30

  机译： 改进了耕作装置和翻耕机，特别是犁多头犁等

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• 7. Turning Device in Helical Coil Roasters for Coffee and the Like. [R] . Otto, A. 1983

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