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Patents

一种可调锏式释能锚杆

Release time:2021-09-14 Hits:
Type of Patent:
国家实用新型专利
Application Number:
ZL201520821418.9
Service Invention or Not:
no
Application Date:
2015-10-22
Authorization Date:
2016-07-06
First Author:
Xingdong Zhao