HN

Hua Nan

HU Henan Polytechnic University: 1 patents #1 of 3Top 35%
Overall (2020): #444,040 of 565,922Top 80%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10633927 Internal reamer for anchor shaft hole for mining Mingyang Song, Saibo Kong 2020-04-28