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Date of Employment:1987-11-01
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多级孔口管快速固定装置

Hits: Praise

Affilication of Author(s):岩土与结构工程研究中心

Type of Patent:实用新型

Application Number:201220656546.9

Number of Inventors:1

Service Invention or Not:no

Application Date:2012-12-03

Publication Date:2013-06-05

Authorization Date:2013-06-05

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