发明名称 |
RING BINDER MECHANISM HAVING UNITARY STRUCTURE |
摘要 |
A ring binder has an elongate body and rings. Each ring includes ring members moveable between open and closed positions. The ring members and body can suitably formed together as one piece from a moldable polymeric material. The binder suitably includes a retaining system operable to selectively and releasably hold the ring members in the closed position. When the ring members are in their open position, loose-leaf pages can be added or removed from the rings. Loose-leaf pages can also be moved from one ring member to another when the ring members are in their open position.
|
申请公布号 |
US2011311300(A1) |
申请公布日期 |
2011.12.22 |
申请号 |
US201113218086 |
申请日期 |
2011.08.25 |
申请人 |
TO CHUN YUEN;WORLD WIDE STATIONERY MANUFACTURING CO., LTD. |
发明人 |
TO CHUN YUEN |
分类号 |
B42F13/20 |
主分类号 |
B42F13/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|