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A trademark used for a screw with a head having two intersecting perpendicular slots and for a screwdriver with a tip shaped to fit into these slots. 菲利普斯式螺钉头用来指有一个盖帽和两个垂直相交沟槽的螺钉的商标，也指一种有适合这些沟槽尖头的螺丝起子的商标。