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经营范围
发明名称
VENTILATION FAN FOR DUCT
摘要
申请公布号
JPS5671743(A)
申请公布日期
1981.06.15
申请号
JP19800062835
申请日期
1980.05.14
申请人
HITACHI LTD
发明人
OOHIRA KATSUNORI;INOUE MASAKI;TOMITAKA TOKUTA
分类号
F24F7/10
主分类号
F24F7/10
代理机构
代理人
主权项
地址
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