Surface treatment of aluminum and aluminum alloys,申请号US19390265339-传众专利搜索

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发明名称	Surface treatment of aluminum and aluminum alloys
摘要
申请公布号	US2339806(A)	申请公布日期	1944.01.25
申请号	US19390265339	申请日期	1939.03.31
申请人	ALUMINUM COMPANY OF AMERICA	发明人	PULLEN ALFRED NORMAN DOUGIAS
分类号	C25F3/20	主分类号	C25F3/20
代理机构		代理人
主权项
地址

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