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发明名称
EXPLOSIVE CHARGE FOR EXPLOSIVE WELDING OF LARCE DIAMETER METAL PIPE
摘要
申请公布号
KR1019840000391(B1)
申请公布日期
1984.03.30
申请号
KR1019800001892
申请日期
1980.05.14
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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