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发明名称
防滑式新型电钻
摘要
一种能够防止打滑的电钻头,它是在已有材料的基础上,改进尾部为相距120度的三个长方形导槽和三个固定横埂。在工作中起到防滑的目的,适用于对坚硬物质打孔。
申请公布号
CN2109905U
申请公布日期
1992.07.15
申请号
CN90203364.6
申请日期
1990.03.15
申请人
杨向东
发明人
杨向东
分类号
B23B45/02
主分类号
B23B45/02
代理机构
代理人
主权项
1、一种电钻头,由螺旋刀削面和尾部柱体组成,其特征是:柱体尾部有三个相距120度的长方形导槽和三个固定横埂。
地址
677500云南省临沧地区耿马县民航导航台
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