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发明名称
摘要
申请公布号
JPS5217598(B2)
申请公布日期
1977.05.17
申请号
JP19720083874
申请日期
1972.08.22
申请人
发明人
分类号
B24B33/06;B24B33/02;B24B49/16
主分类号
B24B33/06
代理机构
代理人
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