METHOD OF MINING COAL,申请号CAD461839-传众专利搜索

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发明名称	METHOD OF MINING COAL
摘要
申请公布号	CA461839(A)	申请公布日期	1949.12.20
申请号	CAD461839	申请日期
申请人	KINDRED L. STORRS	发明人	KINDRED L. STORRS
分类号		主分类号
代理机构		代理人
主权项
地址

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