CN213308187U - 一种教学讲课用的书籍支撑架 - Google Patents
一种教学讲课用的书籍支撑架 Download PDFInfo
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- CN213308187U CN213308187U CN202021858441.2U CN202021858441U CN213308187U CN 213308187 U CN213308187 U CN 213308187U CN 202021858441 U CN202021858441 U CN 202021858441U CN 213308187 U CN213308187 U CN 213308187U
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Effective date of registration: 20240306 Address after: No. 18-D2714, Jianshe Road, Kaixuan Street, Liangxiang Township, Fangshan District, Beijing, 102400 Patentee after: Beijing Sandu Film Co.,Ltd. Country or region after: Zhong Guo Address before: No. a185, 28th floor, 371-1 Wushan Road, Tianhe District, Guangzhou, Guangdong 510000 Patentee before: Guangzhou Renren Environmental Protection Engineering Co.,Ltd. Country or region before: Zhong Guo |
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Effective date of registration: 20240321 Address after: Room 301, Building 3, Shandong Expressway Plaza, Huaiyin District, Jinan City, Shandong Province, 250000 Patentee after: Shandong Huashi Fengxing Group Co.,Ltd. Country or region after: Zhong Guo Address before: No. 18-D2714, Jianshe Road, Kaixuan Street, Liangxiang Township, Fangshan District, Beijing, 102400 Patentee before: Beijing Sandu Film Co.,Ltd. Country or region before: Zhong Guo |