发明名称 TARGET BACKSTOP USING GRANULATED MATERIAL
摘要 The invention relates to a backstop assembly comprising a container (1, 1', 1'', 1''') having an opening (11, 11', 11'', 11''') covered up by a medium (2) and serving as a projectile entry opening, said container containing a particulate flowable granulate (3) as a medium for slowing down projectiles.
申请公布号 US5171020(A) 申请公布日期 1992.12.15
申请号 US19910643539 申请日期 1991.01.18
申请人 WOJCINSKI, ALLAN S. 发明人 WOJCINSKI, ALLAN S.
分类号 F41J13/00 主分类号 F41J13/00
代理机构 代理人
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