发明名称 Curved file apparatus
摘要 Curved file apparatus includes a base element having a straight file on a top surface and a curved element secured to the base element. The curved element includes a convex bottom file surface and a pair of flat file surfaces on the sides of the curved element. The curved element may stand aloe in a second embodiment, with its convex file surface and its flat file surfaces. Handle elements are secured to both embodiments.
申请公布号 US6494647(B1) 申请公布日期 2002.12.17
申请号 US19990329382 申请日期 1999.06.10
申请人 SCHRITZ RONALD D. 发明人 SCHRITZ RONALD D.
分类号 B23D71/04;(IPC1-7):B23D71/00 主分类号 B23D71/04
代理机构 代理人
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