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实用新型专利:一种课堂云和教育云协作的教学交互系统,专利授权号:CN201520657244.7, 授权公告号:CN205158690U。 授权日:2016-4-13

Release Time:2026-06-15
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Title:
实用新型专利:一种课堂云和教育云协作的教学交互系统,专利授权号:CN201520657244.7, 授权公告号:CN205158690U。 授权日:2016-4-13
Service Invention or Not:
No
Date:
2026-06-15