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Parallel Maker / Ruler

Parallel Maker
Parallel Maker

With the equidistant bulges on its edge, this ruler can be used to scrape a group of horizontal equidistant lines on the paper to make users write characters neatly and easily.

University

Dalian Nationalities University

Dalian Nationalities University
Dalian, China

Chundong Ma

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Design

Dalian Nationalities University

Dalian Nationalities University
Dalian, China

Hongtao Miao,Danning Ma,Ruirui Lin,Ping Tang,Xuefei Liu,Di Fang

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