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发明名称
Photograph objectives of variable focal length
摘要
申请公布号
GB924850(A)
申请公布日期
1963.05.01
申请号
GB19610022978
申请日期
1961.06.26
申请人
MARGARETE CAMILLA SCHNEIDER
发明人
分类号
G02B15/14
主分类号
G02B15/14
代理机构
代理人
主权项
地址
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