Perfectionnements aux dispositifs de tension et de ripage pour le déplacement d'une tête motrice notamment dans les mines,申请号FR19676948633-传众专利搜索

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发明名称	Perfectionnements aux dispositifs de tension et de ripage pour le déplacement d'une tête motrice notamment dans les mines
摘要
申请公布号	FR1529944(A)	申请公布日期	1968.06.21
申请号	FR19676948633	申请日期	1967.05.09
申请人	BENNES MARREL	发明人
分类号	E21F13/10	主分类号	E21F13/10
代理机构		代理人
主权项
地址

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