étancon de mine en deux éléments,申请号FRD1074495-传众专利搜索

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发明名称	étancon de mine en deux éléments
摘要
申请公布号	FR1074495(A)	申请公布日期	1954.10.06
申请号	FRD1074495	申请日期	1953.04.13
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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