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经营范围
发明名称
VENTILATING DEVICE
摘要
申请公布号
GB1476700(A)
申请公布日期
1977.06.16
申请号
GB19750009449
申请日期
1975.03.06
申请人
BAUS H
发明人
分类号
F04D29/42;(IPC1-7):F24F7/00;E05D1/04;E05F11/04;F04D29/62
主分类号
F04D29/42
代理机构
代理人
主权项
地址
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