Machine pour l'abatage et le chargement ininterrompus du charbon dans l'exploitationpar,申请号FRD1104765-传众专利搜索

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发明名称	Machine pour l'abatage et le chargement ininterrompus du charbon dans l'exploitationpar
摘要
申请公布号	FR1104765(A)	申请公布日期	1955.11.24
申请号	FRD1104765	申请日期	1953.09.29
申请人	JOY MANUFACTURING COMPANY	发明人
分类号	E21C27/26	主分类号	E21C27/26
代理机构		代理人
主权项
地址

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