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发明名称
Sun hood for reflex cameras
摘要
申请公布号
US2572915(A)
申请公布日期
1951.10.30
申请号
US19490098422
申请日期
1949.06.11
申请人
DEVINE THOMAS A
发明人
DEVINE THOMAS A.
分类号
G03B17/12
主分类号
G03B17/12
代理机构
代理人
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地址
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