发明名称 Clipboard with hole punch
摘要 A combination of a paper holder and a paper punch consisting of a base, a paper clip, and a paper punch built into the paper clip. A "U" shaped steel spring is inserted into depressions in the base and held in place with projections formed in the base and a depression formed in the unit.
申请公布号 US5906448(A) 申请公布日期 1999.05.25
申请号 US19970902739 申请日期 1997.07.30
申请人 NAJMI, BOMAN K. 发明人 NAJMI, BOMAN K.
分类号 B42F1/00;B42F9/00;B42F13/40;(IPC1-7):B42F13/40 主分类号 B42F1/00
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