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发明名称
HEAT EXCHANGER TUBE CLEANING SYSTEM USING FLOW PASSAGE CHANGE VALVE
摘要
申请公布号
KR180297(B1)
申请公布日期
1999.05.01
申请号
KR19950005661
申请日期
1995.03.17
申请人
RA, WEE-CHOOL
发明人
RA, WEE-CHOOL
分类号
F28G1/02;(IPC1-7):F28G1/02
主分类号
F28G1/02
代理机构
代理人
主权项
地址
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