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发明名称
Camera back assembly
摘要
申请公布号
US2930304(A)
申请公布日期
1960.03.29
申请号
US19580749400
申请日期
1958.07.18
申请人
DE ZELAR LOUIS P
发明人
ZELAR LOUIS P. DE
分类号
G03B17/44
主分类号
G03B17/44
代理机构
代理人
主权项
地址
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