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发明名称
柄上具有凹槽之钻头
摘要
本发明之目的乃在于提供一种柄上具有二个相背地位于直径两端之锁固槽口(1、1')及同样地呈相背位于直径两端之一个驱动槽口(3)与一槽内重叠设有一锁固槽口(2)之驱动槽口(4)之钻头。驱动槽口(4)与关联之锁固槽口(2)适当地错开一角度,使得在钻头之驱动区中,二相组合成之槽口之一侧面几乎合而为一。
申请公布号
TW143035
申请公布日期
1990.10.01
申请号
TW078105820
申请日期
1989.07.28
申请人
科技调查发明开发公司
发明人
克劳德.舒瓦兹;荣–贾克.克佛格
分类号
B23B51/00
主分类号
B23B51/00
代理机构
代理人
张世娟 台北巿仁爱路三段一二三巷九弄十五号六楼
主权项
地址
法国
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