CLASP AND SHOELACE INSERTION METHOD
To provide a clasp capable of further quickly tightening and loosening a shoelace and reducing a possibility of loosening the shoelace, and shoelace insertion method.SOLUTION: A clasp 10 comprises two cylindrical parts 1 each having an opening 13 at one end in the axial direction, a connecting shaft...
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Format: | Patent |
Sprache: | eng ; jpn |
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