Treatment for improving bituminous coal,申请号US19340737779-传众专利搜索

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发明名称	Treatment for improving bituminous coal
摘要
申请公布号	US2059388(A)	申请公布日期	1936.11.03
申请号	US19340737779	申请日期	1934.07.31
申请人	NELMS JOSEPH C	发明人	NELMS JOSEPH C.
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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