Perfectionnements aux pompes à eau et à air combinées,申请号FRD716386-传众专利搜索

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发明名称	Perfectionnements aux pompes à eau et à air combinées
摘要
申请公布号	FR716386(A)	申请公布日期	1931.12.19
申请号	FRD716386	申请日期	1931.04.30
申请人	DRYSDALE AND COMPANY LIMITED	发明人	YOUNG JOHN
分类号	F04D9/04	主分类号	F04D9/04
代理机构		代理人
主权项
地址

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