,申请号FR19770036677-传众专利搜索

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法人/股东/高管

发明名称
摘要
申请公布号	FR2411299(B2)	申请公布日期	1982.10.22
申请号	FR19770036677	申请日期	1977.12.06
申请人	FRANCE CHARBONNAGES	发明人
分类号	E21D23/00;E21D23/08;(IPC1-7):E21D23/00	主分类号	E21D23/00
代理机构		代理人
主权项
地址

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