ZZ

Zhao Zhigang

📍 Zhenjiang, CN: #72 of 293 inventorsTop 25%
Overall (All Time): #2,047,987 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8696412 Polishing instrument for optical components Shi Jian 2014-04-15
8699010 Examination kit for polarized lens Yin Feng 2014-04-15