Treatment of sewage sludges,申请号US19300471426-传众专利搜索

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发明名称	Treatment of sewage sludges
摘要
申请公布号	US1917516(A)	申请公布日期	1933.07.11
申请号	US19300471426	申请日期	1930.07.28
申请人	GRAY GILLILAND HORACE	发明人	GILLILAND HORACE GRAY
分类号	C02F11/12	主分类号	C02F11/12
代理机构		代理人
主权项
地址

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