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发明名称
摘要
申请公布号
JPS5265995(U)
申请公布日期
1977.05.16
申请号
JP19750153809U
申请日期
1975.11.12
申请人
发明人
分类号
B24D7/14;B24B3/00;(IPC1-7):B24B3/00
主分类号
B24D7/14
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代理人
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