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发明名称
摘要
申请公布号
GB1266111(A)
申请公布日期
1972.03.08
申请号
GBD1266111
申请日期
1970.07.09
申请人
发明人
分类号
B24B13/00;B24B13/005
主分类号
B24B13/00
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代理人
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地址
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