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发明名称
摘要
申请公布号
JPS4861154(A)
申请公布日期
1973.08.27
申请号
JP19710095964
申请日期
1971.11.30
申请人
发明人
分类号
G02C7/06;B24B13/00;G02B3/10
主分类号
G02C7/06
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代理人
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