CN217283331U - 耳机降噪结构及耳机 - Google Patents
耳机降噪结构及耳机 Download PDFInfo
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CN202220799354.7U CN217283331U (zh) | 2022-04-07 | 2022-04-07 | 耳机降噪结构及耳机 |
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Effective date of registration: 20240627 Address after: No. 555, Yuli Avenue, Tongcheng County Economic Development Zone, Xianning, Hubei 437400 Patentee after: HUBEI YINGXIN PRECISION ELECTRONICS CO.,LTD. Country or region after: China Patentee after: DONGGUAN KAILAI ELECTRONICS Co.,Ltd. Address before: 523000 Building 2, No. 6, Baisha Road, Changping Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN KAILAI ELECTRONICS Co.,Ltd. Country or region before: China Patentee before: HUBEI YINGTONG ELECTRONIC Co.,Ltd. |
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