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发明名称
Projection apparatus for color photography
摘要
申请公布号
US2146635(A)
申请公布日期
1939.02.07
申请号
US19380186415
申请日期
1938.01.22
申请人
LEONARD JOHN E
发明人
LEONARD JOHN E.
分类号
G03B33/08
主分类号
G03B33/08
代理机构
代理人
主权项
地址
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