发明名称 Sketching Device for Copy Paper
摘要 Apparatus and methods for facilitating writing on copy paper are presented. A sketching device can be inserted between upper and lower sets of copy paper to facilitate writing or sketching on the upper set while acting as a barrier to prevent undesired imprinting of the writing or sketching on the lower set. Preferred sketching devices include a physical pen guide that acts as a tactile guide for a drawing instrument. The sketching device can be included for use with a form having a grid, and can itself include a preprinted surface having character designations that indicate different types of information on x and y axes.
申请公布号 US2011109077(A1) 申请公布日期 2011.05.12
申请号 US20100760852 申请日期 2010.04.15
申请人 HABERSTROH CHARLES;HABERSTROH MARTIN P 发明人 HABERSTROH CHARLES;HABERSTROH MARTIN P.
分类号 B42D15/00 主分类号 B42D15/00
代理机构 代理人
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