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发明名称
SPECTACLES FOR SHORTS DISTANCE
摘要
申请公布号
JPH11311755(A)
申请公布日期
1999.11.09
申请号
JP19980134638
申请日期
1998.04.28
申请人
CANON INC
发明人
KOBAYAKAWA YOSHI
分类号
G02C1/00;G02C7/02;(IPC1-7):G02C1/00
主分类号
G02C1/00
代理机构
代理人
主权项
地址
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