| 发明名称 |
Ring binder assembly device to insure the perfected closure of binder rings |
| 摘要 |
The invention provides a ring binder assembly device to insure the perfected closure of loose leaf binder rings. Enclosure of binder rings with the device of the invention will repair and prevent ring misalignment.
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| 申请公布号 |
US2005163557(A1) |
申请公布日期 |
2005.07.28 |
| 申请号 |
US20040767393 |
申请日期 |
2004.01.28 |
| 申请人 |
ENGLAND J.J. |
发明人 |
ENGLAND J.J. |
| 分类号 |
B42F13/22;(IPC1-7):B42F13/00 |
主分类号 |
B42F13/22 |
| 代理机构 |
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