Original document(6 pages)  中文版
    A dedicated screw driver of the manhole's cover for antitheft purpose is composed of handle in the form of rectangular frame, a circular rod made of stainless steel, with conic lower end, and connected to said handle, a sleeve tube for said circular rod, made of stainless steel and with several notches at its lower end, a expansive head, a linking plate, and a nut.
Application Number
申请号		 200610107006 Application Date
申请日		 2006.09.07
Title 名称 Burglarproof special opener for well cover to be checked-up
Publication Number
公开号		 1915605 Publication Date
公开日		 2007.02.21
Approval Pub. Date Granted Pub. Date
International Classification 分类号 B25B27/14
Applicant(s) Name
申请人		 Liu Jianzhuang
Address 地址
Inventor(s) Name 发明人 Liu Jianzhuang;Ren Taiping
Attorney & Agent 代理人
More information 更  多  信  息


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