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发明名称
Motion picture screen
摘要
申请公布号
US1835642(A)
申请公布日期
1931.12.08
申请号
US19300466905
申请日期
1930.07.10
申请人
ANATOLE FRIEDLAND
发明人
FRIEDLAND ANATOLE
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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