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Teaching projector

by LIU SHIQING
Year of Publication 25.11.2015
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Patent

Automatic clamp

by LIU SHIQING
Year of Publication 11.02.2015
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Patent

Engine

by CUI YOUQIANG, LIU SHIQING
Year of Publication 21.03.2023
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Patent

Air drier

by LIU SHIQING
Year of Publication 29.10.2014
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Patent