Perfectionnements apportés aux pompes rotatives,申请号FRD896757-传众专利搜索

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发明名称	Perfectionnements apportés aux pompes rotatives
摘要
申请公布号	FR896757(A)	申请公布日期	1945.03.02
申请号	FRD896757	申请日期	1943.07.26
申请人		发明人	BERK PIETER VAN
分类号	F04C2/344;F04C2/352	主分类号	F04C2/344
代理机构		代理人
主权项
地址

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