| 摘要 |
PROBLEM TO BE SOLVED: To provide a nail having a function of a screw and capable of being easily pulled out. SOLUTION: This nail N is provided with a screw part T formed on at least a tip end part side of a main body shaft part 1o, and a nail-driving recessed part 1c on an end face of a head part 1a. COPYRIGHT: (C)2006,JPO&NCIPI
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