发明名称 Drawing apparatus
摘要 A drawing apparatus including a frame portion. A liquid membrane is positionable within the frame portion. A planar portion is positionable within the frame portion below the liquid membrane. A drawing implement is used to press down on the liquid membrane to move a black pliable liquid around to expose images on the planar portion.
申请公布号 US5775914(A) 申请公布日期 1998.07.07
申请号 US19960728965 申请日期 1996.10.11
申请人 SMITH, PETER MCCORMACK 发明人 SMITH, PETER MCCORMACK
分类号 B43L1/00;B43L1/12;G09B11/00;(IPC1-7):G09B11/00 主分类号 B43L1/00
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