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发明名称
Photographic cameras
摘要
申请公布号
US2951429(A)
申请公布日期
1960.09.06
申请号
US19570640533
申请日期
1957.02.15
申请人
HOCK LEONG CHEW
发明人
LEONG CHEW HOCK
分类号
G03B17/02
主分类号
G03B17/02
代理机构
代理人
主权项
地址
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