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经营范围
发明名称
A HYPOCAUST AND PRODUCTION THEREOF
摘要
申请公布号
KR100221791(B1)
申请公布日期
1999.09.15
申请号
KR19970017274
申请日期
1997.05.06
申请人
YU, SUN JONG;YUM, GU SANG;KIM, SEUNG HWAN
发明人
OEUM, GYU SANG
分类号
C04B18/24;C04B14/10;C04B14/20;C04B28/14;(IPC1-7):C04B18/24
主分类号
C04B18/24
代理机构
代理人
主权项
地址
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