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发明名称
摘要
申请公布号
JPS5443234(B2)
申请公布日期
1979.12.19
申请号
JP19720102993
申请日期
1972.10.14
申请人
发明人
分类号
B24B37/025;B24D11/00;B24D13/14
主分类号
B24B37/025
代理机构
代理人
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地址
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