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发明名称
摘要
申请公布号
DE2152778(A1)
申请公布日期
1972.05.10
申请号
DE19712152778
申请日期
1971.10.22
申请人
发明人
分类号
A61J1/06;B24B31/06;(IPC1-7):B24B31/06
主分类号
A61J1/06
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代理人
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