发明名称 Magnetic rings, bracelets and necklaces
摘要 A device in the form of a ring for wearing on a finger, a bracelet for wearing on a wrist or a necklace for wearing on the neck bears a magnetic pick-up for engaging ferromagnetic objects. It may include other tools such as screwdriver blades, line cutters, prying claws and the like for convenience in having certain useful tools at hand when needed without encumbering the hands of the user.
申请公布号 US4905335(A) 申请公布日期 1990.03.06
申请号 US19880249770 申请日期 1988.09.26
申请人 TERVOLA, PENTTI J. 发明人 TERVOLA, PENTTI J.
分类号 A44C5/00;A44C9/00;B25F1/00 主分类号 A44C5/00
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