CN211163768U - 一种螺杆钻具推力轴承取出工具 - Google Patents
一种螺杆钻具推力轴承取出工具 Download PDFInfo
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- CN211163768U CN211163768U CN201921352870.XU CN201921352870U CN211163768U CN 211163768 U CN211163768 U CN 211163768U CN 201921352870 U CN201921352870 U CN 201921352870U CN 211163768 U CN211163768 U CN 211163768U
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Effective date of registration: 20220324 Address after: 253500 north of the middle section of Beichen Road, economic development zone, Lingcheng District, Dezhou City, Shandong Province Patentee after: SHANDONG LUHAI NEW ENERGY TECHNOLOGY CO.,LTD. Address before: 253500 Beichen Road, Lingcheng Economic Development Zone, De Zhou City, Shandong Province Patentee before: SHANDONG LUHAI PETROLEUM TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20220803 Address after: 253500 No. 6, Beichen Road, economic development zone, Lingcheng District, De Zhou City, Shandong Province Patentee after: SHANDONG LUHAI PETROLEUM TECHNOLOGY CO.,LTD. Address before: 253500 north of the middle section of Beichen Road, economic development zone, Lingcheng District, Dezhou City, Shandong Province Patentee before: SHANDONG LUHAI NEW ENERGY TECHNOLOGY CO.,LTD. |