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发明名称
SPECTACLE VARYING FOCUS
摘要
申请公布号
JPH052153(A)
申请公布日期
1993.01.08
申请号
JP19910250119
申请日期
1991.06.24
申请人
YUKI TADAHIRO
发明人
YUKI TADAHIRO
分类号
G02B3/14;G02C7/06
主分类号
G02B3/14
代理机构
代理人
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地址
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