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发明名称
VARIFOCAL SPECTACLES
摘要
申请公布号
JPH03257422(A)
申请公布日期
1991.11.15
申请号
JP19900057401
申请日期
1990.03.07
申请人
YUKI TADAHIRO
发明人
YUKI TADAHIRO
分类号
G02C7/06;G02B3/14
主分类号
G02C7/06
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