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发明名称
摘要
申请公布号
JPH0433604(U)
申请公布日期
1992.03.19
申请号
JP19900073410U
申请日期
1990.07.10
申请人
发明人
分类号
G02C13/00;A41B15/00;(IPC1-7):A41B15/00
主分类号
G02C13/00
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