CN213541418U - 一种软硬密封消防止回阀 - Google Patents
一种软硬密封消防止回阀 Download PDFInfo
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- CN213541418U CN213541418U CN202022425833.6U CN202022425833U CN213541418U CN 213541418 U CN213541418 U CN 213541418U CN 202022425833 U CN202022425833 U CN 202022425833U CN 213541418 U CN213541418 U CN 213541418U
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CN202022425833.6U CN213541418U (zh) | 2020-10-27 | 2020-10-27 | 一种软硬密封消防止回阀 |
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Legal Events
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Address after: No. 789, Chunyang Road, High tech Zone, Qingdao, Shandong 266111 Patentee after: Weilong Valve Co.,Ltd. Patentee after: LAIZHOU WEILONG VALVE Co.,Ltd. Patentee after: QINGDAO WEILONG FLUID EQUIPMENT Co.,Ltd. Address before: No.45, Xinghe Road, Lancun Town, Jimo City, Qingdao City, Shandong Province 266111 Patentee before: Weilong Valve Co.,Ltd. Patentee before: LAIZHOU WEILONG VALVE Co.,Ltd. Patentee before: QINGDAO WEILONG FLUID EQUIPMENT Co.,Ltd. |
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CP02 | Change in the address of a patent holder |