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发明名称
Lens and filter holder for photographic cameras
摘要
申请公布号
US2868097(A)
申请公布日期
1959.01.13
申请号
US19540440199
申请日期
1954.06.29
申请人
FRANKE & HEIDECKE
发明人
WEISS RICHARD
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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