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经营范围
发明名称
LENS
摘要
An internal focusing lens comprising from the object end a first positive group, a second positive group and a third negative group, the second group being axially movable to focus the lens.
申请公布号
JPS6195309(A)
申请公布日期
1986.05.14
申请号
JP19850129756
申请日期
1985.06.14
申请人
VIVITAR CORP
发明人
JIYAKOBU MOSUKOBUITSUCHI
分类号
G02B7/09;G02B7/28;G02B13/02
主分类号
G02B7/09
代理机构
代理人
主权项
地址
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