发明名称 DRAW-OUT TYPE SOLID MAKER
摘要 Provided is a draw-out solid marker including: a cylindrical shell, a rotary member thread-fastened to the rear end of the shell; a movable member thread-fastened to the rotary member in the shell to move forward/backward from the shell by rotating the rotary member; a cylindrical solid core connected to the front of the movable member to move forward/backward with the movable member and having an elliptical, rectangular, or triangular cross-sectional shape; and a cap coupled to the front end of the shell in order to apply various patterns in accordance with the position of the front end.
申请公布号 US2011182650(A1) 申请公布日期 2011.07.28
申请号 US201113008237 申请日期 2011.01.18
申请人 DONG-A TEACHING MATERIALS CO., LTD. 发明人 KIM HAK-JAE
分类号 B43K21/08 主分类号 B43K21/08
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