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一种用于地下管道挖掘装置的内外双刀盘结构

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Affilication of Author(s):机电工程学院

Scope of patent:国内

School Sign:第一单位

Type of Patent:实用新型

State of Patent:专利授权

Application Number:201520420283.5

Authorization number:CN 204941554 U

Number of Inventors:1

Service Invention or Not:no

Application Date:2015-06-18

Authorization Date:2016-01-06