CN213211403U - 数字电钢琴教学系统 - Google Patents
数字电钢琴教学系统 Download PDFInfo
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CN113676461A (zh) * | 2021-07-29 | 2021-11-19 | 北京金三惠科技有限公司 | 一种电钢琴教室管理方法和系统 |
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CN113676461A (zh) * | 2021-07-29 | 2021-11-19 | 北京金三惠科技有限公司 | 一种电钢琴教室管理方法和系统 |
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Effective date of registration: 20231102 Address after: 273400 Shandong city of Linyi province Feixian County North Ring Road No. 1 Patentee after: Xu Zuobao Address before: No.26, Mingxin Middle Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU VOCATIONAL INSTITUTE OF MECHATRONIC TECHNOLOGY |
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Effective date of registration: 20231120 Address after: 276000 Culture Road Guihua Shuyuan Along Street 2-1-210, Feicheng Street, Feixian County, Linyi City, Shandong Province Patentee after: Shandong Yinda Culture and Art Education Consulting Co.,Ltd. Address before: 273400 Shandong city of Linyi province Feixian County North Ring Road No. 1 Patentee before: Xu Zuobao |
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