Process of treating coal,申请号US19320632467-传众专利搜索

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发明名称	Process of treating coal
摘要
申请公布号	US1960917(A)	申请公布日期	1934.05.29
申请号	US19320632467	申请日期	1932.09.09
申请人	DELAWARE CHEMICAL ENGINEERING COMPANY	发明人	NAGELVOORT ADRIAAN
分类号	C10L9/10	主分类号	C10L9/10
代理机构		代理人
主权项
地址

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