An Improved Trestle Capable of being used as a Ladder or Pair of Steps

• 1. 一种石油装车栈桥梯子专用报警器 [P] . 中国专利： CN209339836U . 2019.09.03
• 2. 一种用作临时栈桥的钢管桩组合装置 [P] . 中国专利： CN207017286U . 2018.02.16
• 3. Improved Apparatus Capable of being Used as a Ladder, an Extensible Ladder, a Pair of Steps, a Trestle or a Roof Ladder. [P] . 英国专利： GB190929653A . 1910-04-14

  机译： 能够用作梯子，可扩展梯子，一对台阶，栈桥或屋顶梯子的改进型设备。

• 4. An improved bracket attachment for ladders, steps and trestles [P] . 英国专利： GB273501A . 1927-07-07

  机译： 改进的梯子，台阶和支架的托架附件

• 5. An improved step ladder, trestle and the like [P] . 英国专利： GB488228A . 1938-07-04

  机译： 改进的阶梯梯，栈桥等

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• 1. ARCHITECTURE OF LADDER,TUBULAR AND SIEVE-PLATE POLYMERS PREPARED BY STEPWISE COUPLING POLYMERIZATION [J] . Rong-ben Zhang ,Ping Xie ,Dao-rong Dai . 高分子科学：英文版 . 2000,第3期
• 2. How to improve students＇ writing skills step by step [J] . Weiyong . 中学生英语 . 2016,第002期
• 3. 浅谈超超临界火电厂输煤栈桥消防措施改进 [C] . 吴庆军 ,邵天佑 ,耿华 . 第二届电站锅炉优化运行与环保技术研讨会 . 2014
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