CN215183049U - 一种多层式单面无铅压电声频元件 - Google Patents
一种多层式单面无铅压电声频元件 Download PDFInfo
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- CN215183049U CN215183049U CN202023064667.8U CN202023064667U CN215183049U CN 215183049 U CN215183049 U CN 215183049U CN 202023064667 U CN202023064667 U CN 202023064667U CN 215183049 U CN215183049 U CN 215183049U
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Denomination of utility model: A multi-layer single-sided lead-free piezoelectric audio component Effective date of registration: 20230524 Granted publication date: 20211214 Pledgee: Zhaoqing Rural Commercial Bank Co.,Ltd. Chengxi sub branch Pledgor: GUANGDONG JC TECHNOLOGICAL INNOVATION ELECTRONICS Co.,Ltd. Registration number: Y2023980041618 |
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Effective date of registration: 20250317 Granted publication date: 20211214 |