2 trademarks were found for owners matching the name David Yao.
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1 TM: 1959034
Desc: MIRROR VENUS

Owner: David Yao, , , AC TECHART ELECTRONICS PTY. LTD.
Class: 20
Status: Registered: Registered/protected
2 TM: 1444723
Desc: I AUS
Owner: David Yao, , , Zeng De Yao
Class: 25
Status: Lapsed: Not accepted