Perfectionnements apportés aux hélices de ventilateurs, etc.,申请号FRD735817-传众专利搜索

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发明名称	Perfectionnements apportés aux hélices de ventilateurs, etc.
摘要
申请公布号	FR735817(A)	申请公布日期	1932.11.16
申请号	FRD735817	申请日期	1932.04.22
申请人	ETABLISSEMENTS RICHARD HELLER	发明人
分类号	F04D29/38	主分类号	F04D29/38
代理机构		代理人
主权项
地址

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