CN209211305U - 一种噪声污染防治的非金属吸隔声装置 - Google Patents
一种噪声污染防治的非金属吸隔声装置 Download PDFInfo
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CN108978505A (zh) * | 2018-09-21 | 2018-12-11 | 山西尚风科技股份有限公司 | 一种噪声污染防治的非金属吸隔声装置 |
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CN108978505A (zh) * | 2018-09-21 | 2018-12-11 | 山西尚风科技股份有限公司 | 一种噪声污染防治的非金属吸隔声装置 |
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Address after: 030032 floor 18, block B, times Freedom Plaza, No. 190, Longxing street, Shanxi Demonstration District, Taiyuan City, Shanxi Province Patentee after: Shangfeng Technology Co.,Ltd. Address before: 030006 6th floor, block B, Gaoxin international, high tech Development Zone, Taiyuan City, Shanxi Province Patentee before: SHANXI SHANGFENG TECHNOLOGY Co.,Ltd. |
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Denomination of utility model: A non-metallic sound absorption and insulation device for noise pollution prevention Effective date of registration: 20211214 Granted publication date: 20190806 Pledgee: Bank of China Limited Taiyuan Pingyang sub branch Pledgor: Shangfeng Technology Co.,Ltd. Registration number: Y2021140000049 |
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Date of cancellation: 20230109 Granted publication date: 20190806 Pledgee: Bank of China Limited Taiyuan Pingyang sub branch Pledgor: Shangfeng Technology Co.,Ltd. Registration number: Y2021140000049 |
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Denomination of utility model: Non-metallic sound absorption and insulation device for noise pollution prevention Effective date of registration: 20230131 Granted publication date: 20190806 Pledgee: Bank of China Limited Taiyuan Pingyang sub branch Pledgor: Shangfeng Technology Co.,Ltd. Registration number: Y2023140000006 |
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