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safe stick / tool

safe stick

This concept has provided a solutions as normally
nail has bent or injury to operator during drive nail,
so this concept can be solution or supplementation.

University

Hannam University

Hannam University
Daejeon, South Korea

Design

Hannam University

Hannam University
Daejeon, South Korea

yu-jin Kim yu-kyung Kim mi-ri Kwak eun-sol Lee