A foldable of the supporting frame for a typical three-point hitch harrows.

• 1. 驱动耙用高强度三点连接式悬挂总成 [P] . 中国专利： CN215421503U . 2022-01-07
• 2. 一种用于方舱房车底盘的三点式悬挂装置 [P] . 中国专利： CN215436619U . 2022-01-07
• 3. Frame for plows for a typical three-point hitch [P] . 德国专利： DE7824798U1 . 1979-04-19

  机译： 典型的三点悬挂犁架

• 4. Coupling member of a rapidly coupler for a typical three-point hitch on agricultural machines [P] . 德国专利： DE7825074U1 . 1979-03-01

  机译： 用于农业机械典型三点悬挂的快速接头的联接件

• 5. A typical three-point hitch, for an agricultural equipment [P] . 德国专利： DE6936085U . 1970-02-12

  机译： 典型的三点悬挂，用于农业设备

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