Tuyau à surface intérieure à gradins,申请号FRD685301-传众专利搜索

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发明名称	Tuyau à surface intérieure à gradins
摘要
申请公布号	FR685301(A)	申请公布日期	1930.07.09
申请号	FRD685301	申请日期	1929.11.21
申请人		发明人	ANTONI UGO
分类号	F15D1/06	主分类号	F15D1/06
代理机构		代理人
主权项
地址

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