Ore drying apparatus,申请号US19320589554-传众专利搜索

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发明名称	Ore drying apparatus
摘要
申请公布号	US1979312(A)	申请公布日期	1934.11.06
申请号	US19320589554	申请日期	1932.01.29
申请人	TENNESSEE COPPER COMPANY	发明人	BURNS ROY R.
分类号	F27B1/20;F27B9/24	主分类号	F27B1/20
代理机构		代理人
主权项
地址

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