发明授权
US5275890A Gun target with contrasting backing 失效
枪目标与对比背景

Gun target with contrasting backing
摘要:
A gun target including a substantially planar first sheet having a back surface and an exposed front surface which carries a graphic pattern having a first color, at which the weapon is aimed. A substantially planar second sheet is connected to the back surface of the first sheet so as to lie substantially parallel to the first sheet. The second sheet has a front surface that has a second, contrasting color relative to the first color. When a round fired from the weapon into the graphic pattern penetrates both sheets, the resulting hole exposes the second color at the front surface of the first sheet.
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