发明名称 |
RING BINDER |
摘要 |
A ring binder (1) comprises a sheet of polypropylene material divided by score line (2, 3) into front and rear panels (4, 6) joined by a spine (5). The binder includes a pair of binder strips (7), each of which has a partly circular head (8). The strips (7) and heads (8) are cut from the sheet material so that the strips (7) extend from the spine (5) at a position adjacent the score line (3). The strips (7) are associated with apertures (11) formed in spine (5). The heads (8) can pass through apertures (11) without deformation. |
申请公布号 |
WO9002051(A1) |
申请公布日期 |
1990.03.08 |
申请号 |
WO1989GB00961 |
申请日期 |
1989.08.18 |
申请人 |
CORBISHLEY, THOMAS, SIMON |
发明人 |
CORBISHLEY, THOMAS, SIMON |
分类号 |
B42F13/10;(IPC1-7):B42F13/10;B42F13/40;B42F13/08 |
主分类号 |
B42F13/10 |
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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