专利检索 cpc:"H01H2201/03220130101" 第 1 页

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发明授权
HEADPHONES WITH ROTATABLE USER INPUT MECHANISM 有权

公开(公告)号：EP3971932B1

公开(公告)日：2024-10-09

申请号：EP20198265.9

申请日：2020-09-25

IPC分类号： H01H25/06 , H04R1/10 , H03K17/94 , H03K17/97 , H04R5/033 , H03K17/968

CPC分类号： H04R1/1041 , H01H25/06 , H03K17/968 , H01H2223/00220130101 , H01H2221/02620130101 , H01H2203/0220130101 , H01H2201/03220130101 , H01H2221/0320130101 , H01H2221/06220130101 , H01H2215/00420130101 , H03K17/97 , H03K17/941 , H04R1/1066 , H04R5/0335