étançon en deux éléments utilisable notamment dans les mines,申请号FRD1135208-传众专利搜索

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发明名称	étançon en deux éléments utilisable notamment dans les mines
摘要
申请公布号	FR1135208(A)	申请公布日期	1957.04.25
申请号	FRD1135208	申请日期	1955.11.14
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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