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摘要
申请公布号
NL6414711(A)
申请公布日期
1965.06.21
申请号
NL19640014711
申请日期
1964.12.17
申请人
发明人
分类号
B23D21/00;B23D23/00;C07D207/44;C07D207/444;F16L55/10;G21C13/02
主分类号
B23D21/00
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