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发明名称
DUCT
摘要
申请公布号
KR890008720(Y1)
申请公布日期
1989.11.30
申请号
KR19870000758U
申请日期
1987.01.26
申请人
NAKAJIMA KENJI
发明人
NAKAJIMA KENJI
分类号
F16L23/02;F16B2/22;F16B5/06;F16L23/14;F24F13/02;(IPC1-7):F24F13/02
主分类号
F16L23/02
代理机构
代理人
主权项
地址
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