Patent Applicant:lishuchen
Type of Patent:发明
Application Number:201410052603.6
Number of Inventors:6
Service Invention or Not:no
Application Date:2014-02-17
Publication Date:2015-10-21
Authorization Date:2014-02-17
Application Date: 2014-02-17
Publication Date: 2015-10-21
Authorization Date: 2014-02-17
李树忱
+
Gender:Male
Patents
用于膨胀性土层隧道初期的钢格栅钢拱架联合支护
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