CN215116689U - 液压支架电控系统电源的故障诊断系统 - Google Patents
液压支架电控系统电源的故障诊断系统 Download PDFInfo
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Effective date of registration: 20220725 Address after: 450016 No. 167, 9th Street, Zhengzhou area (Economic Development Zone), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: No.167, 9th Street, Zhengzhou Economic Development Zone, Henan Province, 450016 Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Patentee before: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
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CP03 | Change of name, title or address | ||
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Address after: No.167, 9th Street, Zhengzhou Economic and Technological Development Zone, Henan Province, 450016 Patentee after: Zhengzhou Hengda Intelligent Control Technology Co.,Ltd. Address before: 450016 No. 167, 9th Street, Zhengzhou area (Economic Development Zone), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |