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于月森

Patents

矿井提升机延迟式速度保护装置

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Disigner of the Invention:yuyuesen

Note:于月森

Type of Patent:国际

State of Patent:专利撤回

Application Number:200420079614.5

Authorization number:CN 2748426Y

Number of Inventors:2

Service Invention or Not:no

Application Date:2004-09-20

Authorization Date:2005-12-28

First Author:邓世建