| 摘要 |
PROBLEM TO BE SOLVED: To provide a nail driver for preventing a nail from being dropped when a nail is hammered to a unreachable higher position. SOLUTION: The nail driver comprising a pipe 2 on the outer side and a straight rod on the inner side hammers and drives a nail. The nail is held by a spring system below the pipe 2 on the outer side to prevent the nail from being dropped. COPYRIGHT: (C)2004,JPO
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