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发明名称
摘要
申请公布号
JPS4823955(B1)
申请公布日期
1973.07.17
申请号
JP19680063198
申请日期
1968.09.03
申请人
发明人
分类号
C25D1/00;B24D3/06;E21B10/02
主分类号
C25D1/00
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代理人
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地址
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