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一种严寒地区穿山隧道冬季施工用移动式保温装置

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Disigner of the Invention:wangzhechao
Type of Patent:实用新型
Application Number:201420826347.7
Number of Inventors:12
Service Invention or Not:no
Application Date:2014-12-22
Publication Date:2015-07-22
Authorization Date:2014-12-22

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