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发明名称
Photographic objective
摘要
申请公布号
US3006249(A)
申请公布日期
1961.10.31
申请号
US19580764339
申请日期
1958.09.30
申请人
ERNST LEITZ CANADA LIMITED
发明人
MANDLER WALTER
分类号
G02B13/00
主分类号
G02B13/00
代理机构
代理人
主权项
地址
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