Perfectionnements aux dispositifs de suspension pour canalisations,申请号FRD776757-传众专利搜索

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发明名称	Perfectionnements aux dispositifs de suspension pour canalisations
摘要
申请公布号	FR776757(A)	申请公布日期	1935.02.04
申请号	FRD776757	申请日期	1934.08.01
申请人	E. I. DU PONT DE NEMOURS AND CO	发明人
分类号	E21F17/02	主分类号	E21F17/02
代理机构		代理人
主权项
地址

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