Armement de puits, en particulier pour sièges d'extraction à faux-puits,申请号FRD1055917-传众专利搜索

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发明名称	Armement de puits, en particulier pour sièges d'extraction à faux-puits
摘要
申请公布号	FR1055917(A)	申请公布日期	1954.02.23
申请号	FRD1055917	申请日期	1951.07.11
申请人	GUTEHOFFNUNGSHU:TTE OBERHAUSEN A. G.	发明人
分类号	E21D7/00	主分类号	E21D7/00
代理机构		代理人
主权项
地址

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