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发明名称
UN TORNILLO AUTOTALADRANTE.
摘要
<p>A self-tapping screw whose stainless steel shank has a slotted free end in which a plate-shaped, carbide drill bit is fastened, the bit being dimensioned and arranged to drill a hole smaller than the major diameter of the tapping threads.</p>
申请公布号
ES233385(Y)
申请公布日期
1978.07.16
申请号
ES19850002333U
申请日期
1978.01.18
申请人
发明人
分类号
F16B13/13;F16B25/10;(IPC1-7):16B/
主分类号
F16B13/13
代理机构
代理人
主权项
地址
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