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发明名称
Projection screen
摘要
申请公布号
US2372173(A)
申请公布日期
1945.03.27
申请号
US19440525219
申请日期
1944.03.06
申请人
BODDE JR BERNARD M
发明人
JR. BERNARD M. BODDE,
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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