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发明专利：圆弧端齿齿形加工方法[P] CN101733485A

Type of Patent: Software copyright

Service Invention or Not: no

First Author: 张红军,李业明,zhongwensheng,Yuan Yao

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发明专利：高速机车转向架三爪连杆盘直齿端齿连结结构[P]CN102198836A
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实用新型专利：一种适用于动车牵引电机悬臂式柔性悬挂的弹性关节构造  ZL201220724791.9 张红军，姚远，钟文生

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