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IPC部
A(2)
IPC大类
A63(2)
IPC小类
A63B(2)
IPC
发明人
公开年
2021(2)
申请年
专利权人
Shock-absorbing slow-elastic sports mat comprises a shock-absorbing slow-elastic material layer, tear-resistant pound cloth, natural rubber layer, where tear-resistant weighing cloth arranged between shock-absorbing elastic material layer.
WENG C
Golf ball comprises core and cover layer, where cover layer has two half shells fused by ultrasonic welding and compression molding to complete cover molding with dimples, where cover layer has thermoplastic resin or thermoset elastomer.
KIM K J, KIM H J
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