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发明名称
Projection screens
摘要
申请公布号
US2763184(A)
申请公布日期
1956.09.18
申请号
US19520295083
申请日期
1952.06.23
申请人
GORDON JACKSON JAMES
发明人
JACKSON JAMES GORDON
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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