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发明名称
Focusing screen for camera finders
摘要
申请公布号
US3003387(A)
申请公布日期
1961.10.10
申请号
US19580747194
申请日期
1958.07.08
申请人
FRANKE & HEIDECKE, FABRIK PHOTOGRAPHISCHER PRAZISIONS-APPARATE
发明人
SCHIELE KARL
分类号
G03B13/26
主分类号
G03B13/26
代理机构
代理人
主权项
地址
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