DJ

Ding Jian

📍 Beijing, CA: #131 of 284 inventorsTop 50%
Overall (2011): #315,692 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D643540 Roller massager Megan Zhu 2011-08-16