李静
一种钻头受力计时装置
Release time:2021-07-24Hits:
Affilication of Author(s): 中国科学技术大学
Disigner of the Invention: 何旺
Patent description: 实用新型
Application Number: 201520509035.8
Number of Inventors: 2
Service Invention or Not: no
Publication Date: 2015-11-25
Authorization Date: 2015-11-25
First Author: lijing