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发明名称
摘要
申请公布号
NL6602574(A)
申请公布日期
1966.09.19
申请号
NL19660002574
申请日期
1966.02.28
申请人
发明人
分类号
B02C13/04;B02C13/282;B23D31/00
主分类号
B02C13/04
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代理人
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地址
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