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Inventor
TONG CHENGKE
CN
2 patents
Patents
2 patents
US8950815B2
Feb 10, 2015
Four-way adjustable headrest
DAIMAY NORTH AMERICA AUTOMOTIVE INC
20 citations
89
US9649958B2
May 16, 2017
Four-way adjustable headrest
DAIMAY NORTH AMERICA AUTOMOTIVE INC
1 citations
49