FRAME FOR MINE ROOF SUPPORT,申请号CAD668340-传众专利搜索

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发明名称	FRAME FOR MINE ROOF SUPPORT
摘要
申请公布号	CA668340(A)	申请公布日期	1963.08.13
申请号	CAD668340	申请日期
申请人	KARL T. JASPER	发明人	KARL T. JASPER
分类号		主分类号
代理机构		代理人
主权项
地址

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