2 trademarks were found for owners matching the name Du Ya Zhong.
#
1 TM: 1135331
Desc: SLR

Owner: Du Ya Zhong
Class: 6
Status: Protected: Registered/protected
2 TM: 1149647
Desc: SHENLI RIGGING

Owner: Du Ya Zhong
Class: 6
Status: Protected: Registered/protected