发明名称 Apparatus for reinforcing binding holes
摘要 Reinforcement for strengthening sheets of paper and the like around binding holes. The reinforcement has a generally chevron shape with parallel opposing edges of similar length and contour. In one embodiment, the reinforcements are supplied in a precut from in which a plurality of the reinforcements are nested together along an axis with the opposing edges of adjacent ones of the reiforcements in close mating relationship with each other and no gaps or waste material between the reinforcements. In another embodiment, the reinforcements are cut in place from a sheet of adhesive backed reinforcing material and applied by a punch which also cuts the binding holes in the paper.
申请公布号 US4822446(A) 申请公布日期 1989.04.18
申请号 US19860922406 申请日期 1986.10.23
申请人 HANSEN, ROBERT S. 发明人 HANSEN, ROBERT S.
分类号 B42F3/00;(IPC1-7):B32B31/18 主分类号 B42F3/00
代理机构 代理人
主权项
地址