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发明名称
摘要
申请公布号
JPS5123997(Y2)
申请公布日期
1976.06.19
申请号
JP19710054444U
申请日期
1971.06.25
申请人
发明人
分类号
B24B7/04;B24B7/00;B24B37/00
主分类号
B24B7/04
代理机构
代理人
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地址
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