CN220015113U - 一种自流井井口帽结构 - Google Patents
一种自流井井口帽结构 Download PDFInfo
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- CN220015113U CN220015113U CN202321545595.XU CN202321545595U CN220015113U CN 220015113 U CN220015113 U CN 220015113U CN 202321545595 U CN202321545595 U CN 202321545595U CN 220015113 U CN220015113 U CN 220015113U
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CN202321545595.XU CN220015113U (zh) | 2023-06-16 | 2023-06-16 | 一种自流井井口帽结构 |
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CN202321545595.XU CN220015113U (zh) | 2023-06-16 | 2023-06-16 | 一种自流井井口帽结构 |
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Effective date of registration: 20240509 Address after: Room 4010 and Room 4011, No. 2 Huatian Road, Huayuan Industrial Zone, Binhai High tech Zone, Binhai New Area, Tianjin, 300450 (Hosted by Sanqianke (Tianjin) Business Secretary Service Co., Ltd., No. 1213) Patentee after: Middling coal Hydrology Bureau Group (Tianjin) Engineering Technology Research Institute Co.,Ltd. Country or region after: China Address before: 056004 No. 154 Fuhei Street, Handan City, Hebei Province Patentee before: HYDROGEOLOGY BUREAU OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY Country or region before: China |