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发明名称
Projector slide equipment
摘要
申请公布号
US2371666(A)
申请公布日期
1945.03.20
申请号
US19430476669
申请日期
1943.02.22
申请人
ZWIRN CHARLES W
发明人
ZWIRN CHARLES W.
分类号
G03B23/10
主分类号
G03B23/10
代理机构
代理人
主权项
地址
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