MOVING MECHANISM OR A FRICTION-GUIDED SLEIGH ON A CATERPILLAR,OF A TYPE FOR A REINFORCING SUPPORT,申请号YU19770002876-传众专利搜索

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发明名称	MOVING MECHANISM OR A FRICTION-GUIDED SLEIGH ON A CATERPILLAR,OF A TYPE FOR A REINFORCING SUPPORT
摘要
申请公布号	YU287677(A)	申请公布日期	1982.06.30
申请号	YU19770002876	申请日期	1977.12.06
申请人	CHARBONNAGES DE FRANCE	发明人
分类号	E21F13/00;B62D55/10;E21D23/08;(IPC1-7):E21D15/00	主分类号	E21F13/00
代理机构		代理人
主权项
地址

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