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PI-YUN CHIANG

JC Joy Industrial Co.: 4 patents #2 of 4Top 50%
Overall (All Time): #1,225,820 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8474587 Bicycle hub assembly with two bearings 2013-07-02
8413947 Positioning device for battery box 2013-04-09
8038225 Bicycle hub assembly 2011-10-18
D609621 Cassette body 2010-02-09