Perfectionnements apportés aux dispositifs de support du toit des mines,申请号FR19590789926-传众专利搜索

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发明名称	Perfectionnements apportés aux dispositifs de support du toit des mines
摘要
申请公布号	FR1219042(A)	申请公布日期	1960.05.13
申请号	FR19590789926	申请日期	1959.03.20
申请人	GULLICK LIMITED	发明人
分类号	E21D23/04	主分类号	E21D23/04
代理机构		代理人
主权项
地址

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