发明名称 |
Hole punching device for a ringed notebook |
摘要 |
A device for punching holes in paper is adapted to be positioned within the binder mechanism of a loose leaf notebook. The device employs an integral receiving base having a bore and cutting aperture. A punch member is slidably disposed within the bore above the aperture and adapted to move in a reciprocal manner in orthogonal relationship to the notebook.
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申请公布号 |
US5273370(A) |
申请公布日期 |
1993.12.28 |
申请号 |
US19920973402 |
申请日期 |
1992.11.09 |
申请人 |
BLAND, ROBERT E.;VAN DAVELAAR, PETER |
发明人 |
BLAND, ROBERT E.;VAN DAVELAAR, PETER |
分类号 |
B42F13/40;(IPC1-7):B42F13/40 |
主分类号 |
B42F13/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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