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发明名称
VARIABLE PITCH FANS
摘要
申请公布号
US3487880(A)
申请公布日期
1970.01.06
申请号
USD3487880
申请日期
1967.04.12
申请人
DOWTY ROTOL LTD.
发明人
STUART DUNCAN DAVIES;JOHN ALFRED CHILMAN
分类号
F01D7/00;F02K1/66;F04D29/32;(IPC1-7):B64C11/38;B64C11/06
主分类号
F01D7/00
代理机构
代理人
主权项
地址
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