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发明名称
Multiple exposure camera
摘要
申请公布号
US2921509(A)
申请公布日期
1960.01.19
申请号
US19550542361
申请日期
1955.10.24
申请人
KARL FREUND
发明人
FREUND KARL
分类号
G03B19/04
主分类号
G03B19/04
代理机构
代理人
主权项
地址
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