Laser Pointer Chalk Holder

The present invention relates to a chalk holder, wherein a laser pointer is combined with the chalk holder so that functions of the laser pointer and the chalk holder can be used together. Thus, the chalk holder comprises: a chalk holder body and a lower fastener formed to be gripped by a hand; a bu...

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Bibliographische Detailangaben
1. Verfasser: LEE, NAM KYOUNG
Format: Patent
Sprache:eng ; kor
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