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经营范围
发明名称
FLOW DIRECTION CHANGING DEVICE
摘要
申请公布号
JPH01120408(A)
申请公布日期
1989.05.12
申请号
JP19870274707
申请日期
1987.10.31
申请人
NEC CORP
发明人
OKA SEIJIRO
分类号
F15D1/08;F24F13/14
主分类号
F15D1/08
代理机构
代理人
主权项
地址
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