Writing posture correcting pen

The utility model discloses a writing posture correcting pen, which comprises a thumb groove, a forefinger groove and a middle finger groove. The utility model is characterized in that the thumb groove is at the front end of the pen, and is in an oval shape along the direction of the pen, and the ce...

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Bibliographische Detailangaben
1. Verfasser: AI LIZHUO
Format: Patent
Sprache:chi ; eng
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