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智能称重书包
广东轻工职业技术学院
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# 653
智能称重书包
infant&mom
Category
impression drawing
stage
2015-08-18
uploaded
Summary
孩子脊椎呵护专家/书包重量监控/GPS定位系统/书包挡雨系统/屏幕变换
Other Information
3093
1
0
0
Patent
no patent