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发明名称
REAR PROJECTION SCREEN
摘要
申请公布号
US3552822(A)
申请公布日期
1971.01.05
申请号
USD3552822
申请日期
1968.06.07
申请人
GERALD ALTMAN
发明人
GERALD ALTMAN
分类号
G03B21/62;(IPC1-7):G03B21/60
主分类号
G03B21/62
代理机构
代理人
主权项
地址
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