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Paper clip is commonly used in office life, which can fix many pieces of paper together. But it is difficult to classify the fixed papers with the traditional clip. The Connecting Paper Clip can realize the function of classification by connecting several clips together in different ways. The slope one is used to order and fix papers, and the level one is for classify and fix papers.
Dalian Minzu University
Dalian, China
Haimo Bao , Xiang Gao , Yusheng Yin , Song Qiao
