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经营范围
发明名称
PROJECTION SCREEN
摘要
<p>PURPOSE:To attain a distinct image of projection by forming a projection plane made from a porous body consisting of a three-dimensional irregular reticulated construction.</p>
申请公布号
JPS52113732(A)
申请公布日期
1977.09.24
申请号
JP19760030613
申请日期
1976.03.19
申请人
SUMITOMO ELECTRIC INDUSTRIES;COPAL CO LTD
发明人
ARAI KIYOYUKI;OOTA NARIKATA;KAMIJIYOU EIJI
分类号
G03B21/60
主分类号
G03B21/60
代理机构
代理人
主权项
地址
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