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发明名称
Camera focusing structure having pivoted supplementary lens
摘要
申请公布号
US2482571(A)
申请公布日期
1949.09.20
申请号
US19450585883
申请日期
1945.03.31
申请人
FAIRCHILD CAMERA AND INSTRUMENT CORPORATION
发明人
ARNOLD GEORGE J.
分类号
G03B17/12
主分类号
G03B17/12
代理机构
代理人
主权项
地址
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