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经营范围
发明名称
DUCT BURNER HEATER
摘要
申请公布号
KR1019900003227(B1)
申请公布日期
1990.05.11
申请号
KR1019880003247
申请日期
1988.03.25
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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