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