让压型异型梁锚索桁架巷道支护系统

Release time:2018-05-15|Hits:

Patent Applicant:Wang Hanpeng

Disigner of the Invention:lishucai

Type of Patent:实用新型

Application Number:201120125024.1

Number of Inventors:2

Service Invention or Not:no

Application Date:2011-04-26

Publication Date:2011-12-07

Authorization Date:2011-04-26