发明名称 Ring Binder
摘要 A ring binder which is easy to grasp at the spine. A ring binder (101) includes a stiffener assembly (113) which has front (115) and rear (117) stiffener panels that are interconnected by a flexible backing (119). The stiffener assembly (113) being devoid of any stiffeners disposed between the front and rear cover stiffener panels (115, 117). Canvas material is secured to the interior (121) and exterior (123) surface of the stiffener assembly (113). A ring assembly (141) is secured to the rear cover stiffener assembly (117). In this manner, the surface sheets (121, 123) and the stiffener assembly (113) cooperatively define a binder cover (131) having front and re ar covers (133, 135) interconnected by a flexible spine (137), the flexible spi ne (137) being comformable about the ring assembly (141).
申请公布号 CA2198480(A1) 申请公布日期 1996.03.07
申请号 CA19952198480 申请日期 1995.08.24
申请人 AVERY DENNISON CORPORATION 发明人 PODOSEK, EDWARD
分类号 B42F13/00;(IPC1-7):B42C7/00 主分类号 B42F13/00
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