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发明名称
KEEP WARMING PIPE HAVING GOOD ADIABATIC PROPERTY AND ITS PREPARING METHOD
摘要
申请公布号
KR1019940009289(B1)
申请公布日期
1994.10.06
申请号
KR1019920009887
申请日期
1992.06.08
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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