Perfectionnements apportés aux pompes à air,申请号FRD38232-传众专利搜索

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发明名称	Perfectionnements apportés aux pompes à air
摘要
申请公布号	FR38232(E)	申请公布日期	1931.04.24
申请号	FRD38232	申请日期	1929.09.11
申请人		发明人	VIET PAUL
分类号	F04B33/00	主分类号	F04B33/00
代理机构		代理人
主权项
地址

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