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发明名称
摘要
申请公布号
USH45(H)
申请公布日期
1986.04.01
申请号
US19840631697
申请日期
1984.07.17
申请人
发明人
分类号
B24B23/00;B24B27/06;B24B55/10
主分类号
B24B23/00
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代理人
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地址
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