专利名称：Combo screw driver head 发明人：Mark G. Coppejans
独留青冢向黄昏申请号：US08/450824
申请日：19950525
公开号：US05528966A
内蒙古的风俗公开日：
19960625
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蝶自来
缺钾的症状有哪些摘要：The prent invention describes a new and novel screwdriver head designed for u specifically with combo screws or uni-screws. The screwdriver head has a shank and a head having opposite mounted single straight ribs or blades of the type ud on a standard flat-bladed screwdriver, and, perpendicular thereto, a pair of ribs of the Phillips headed screwdriver type. In between the pairs of ribs are recesd areas for connecting with the walls of the combo-screws.
陕西司法厅申请人：COPPEJANS; MARK G.音乐人英文>师范类学校排名
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