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发明名称
Episcopic projector
摘要
申请公布号
US2570507(A)
申请公布日期
1951.10.09
申请号
US19490122173
申请日期
1949.10.19
申请人
GIANNI ANDREOLI
发明人
ANDREOLI GIANNI
分类号
G03B21/06
主分类号
G03B21/06
代理机构
代理人
主权项
地址
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