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专利名称：Position/motion sensor发明人：Jon C. Marine申请号：US09934078申请日：20010820公开号：US06747220B2公开日：20040608
专利附图：
摘要：According to an embodiment of the invention, a sensor includes a housing withan annular track; a cylindrical contact within the annular track, the cylindrical contactbeing appropriately sized to allow movement within the annular track; and a platecoupled with the housing, the plate including one or more pairs of electrical contacts
situated substantially adjacent to the annular track.
申请人：MATTEL, INC.
代理机构：Kolisch Hartwell, P.C.
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