Aeration and gas purification process,申请号US19250021979-传众专利搜索

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发明名称	Aeration and gas purification process
摘要
申请公布号	US1866229(A)	申请公布日期	1932.07.05
申请号	US19250021979	申请日期	1925.04.09
申请人	THE KOPPERS COMPANY	发明人	JR. FREDERICK W. SPERR,
分类号	C10K1/12	主分类号	C10K1/12
代理机构		代理人
主权项
地址

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