SPOOL HOLDER TRAY AND SPOOL HOLDER DEVICE
To prevent a sewing thread from raveling from a spool.SOLUTION: A spool holder tray 20 is a polygonal-shaped plate having a placing face 23 on which a spool 30 is placed and a threading groove 24 is formed from the center to the outer edge of the placing face 23. Thus, a thread path can be formed fo...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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