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发明名称
Projection screen
摘要
申请公布号
US2812808(A)
申请公布日期
1957.11.12
申请号
US19540418946
申请日期
1954.03.26
申请人
RADIANT MANUFACTURING CORPORATION
发明人
NICHOLAS WILLIAM
分类号
G03B21/58
主分类号
G03B21/58
代理机构
代理人
主权项
地址
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