CN210622750U - 一种隔水导管割口内磨铣工具 - Google Patents
一种隔水导管割口内磨铣工具 Download PDFInfo
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- CN210622750U CN210622750U CN201921027475.4U CN201921027475U CN210622750U CN 210622750 U CN210622750 U CN 210622750U CN 201921027475 U CN201921027475 U CN 201921027475U CN 210622750 U CN210622750 U CN 210622750U
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Effective date of registration: 20220111 Address after: No. 6, Dongzhi gate, Dongcheng District, Beijing, Beijing Patentee after: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee after: CNOOC ENERGY TECHNOLOGY & SERVICES-OIL PRODUCTION SERVICES Co. Patentee after: CNOOC Energy Development Co.,Ltd. Tianjin Branch Address before: No. 6, Dongzhi gate, Dongcheng District, Beijing, Beijing Patentee before: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee before: CNOOC Energy Development Co., Ltd. Tianjin Branch |