CN216713959U - 一种组合式楼梯模块 - Google Patents
一种组合式楼梯模块 Download PDFInfo
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- CN216713959U CN216713959U CN202122697987.5U CN202122697987U CN216713959U CN 216713959 U CN216713959 U CN 216713959U CN 202122697987 U CN202122697987 U CN 202122697987U CN 216713959 U CN216713959 U CN 216713959U
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Effective date of registration: 20230607 Address after: 100043 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: CHINA RAILWAY CONSTRUCTION GROUP Co.,Ltd. Patentee after: China Railway Construction Group Infrastructure Construction Co.,Ltd. Patentee after: China Railway Construction Group (Hangzhou) Construction Co.,Ltd. Address before: 100043 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: China Railway Construction Group Infrastructure Construction Co.,Ltd. Patentee before: China Railway Construction Group (Hangzhou) Construction Co.,Ltd. |
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