CN208897763U - 一种适用于化学分析的滤纸及配套卷纸盒 - Google Patents
一种适用于化学分析的滤纸及配套卷纸盒 Download PDFInfo
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- CN208897763U CN208897763U CN201821374245.0U CN201821374245U CN208897763U CN 208897763 U CN208897763 U CN 208897763U CN 201821374245 U CN201821374245 U CN 201821374245U CN 208897763 U CN208897763 U CN 208897763U
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Effective date of registration: 20230414 Address after: 100029 Beijing Chaoyang District Beichen West Road 8 Beichen World Center A Block 703 Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Drilling fluid technology service center of Sinopec Shengli Petroleum Engineering Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |