étançon de mine composé de deux éléments,申请号FRD1022396-传众专利搜索

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发明名称	étançon de mine composé de deux éléments
摘要
申请公布号	FR1022396(A)	申请公布日期	1953.03.04
申请号	FRD1022396	申请日期	1950.07.05
申请人	HERMANN SCHWARZ KOMMANDITGESELLSCHAFT	发明人
分类号	E21D15/32	主分类号	E21D15/32
代理机构		代理人
主权项
地址

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