发明名称 Multi-ring loose leaf binder and portable paper punch therefor
摘要 A portable paper punch comprising a pair of substantially flat, juxtaposed members having therein a multiplicity of holes arranged in a position in which is identical to the pattern of holes to be punched in a sheet of loose leaf paper, and means for securing the flat, juxtaposed members together in a fixed, spaced apart relation with the pattern of holes in one member registering with the pattern of holes in the opposite member, the arrangement being such that when inserted in the space between the members, the sheet of loose leaf paper can be provided with the same pattern of holes by forcing a sharp object through each pair of registered holes in the members.
申请公布号 US4729688(A) 申请公布日期 1988.03.08
申请号 US19870051658 申请日期 1987.05.20
申请人 MANZ, AUGUST F. 发明人 MANZ, AUGUST F.
分类号 B26F1/32;B42F13/22;B42F13/40;(IPC1-7):B42F3/04 主分类号 B26F1/32
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