Protective film to prevent evaporation,申请号US19620223291-传众专利搜索

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发明名称	Protective film to prevent evaporation
摘要
申请公布号	US3199944(A)	申请公布日期	1965.08.10
申请号	US19620223291	申请日期	1962.09.10
申请人	STANDARD OIL COMPANY	发明人	GABOR JOSEPH;JR. HERMAN E. RIES,
分类号	B01J19/16	主分类号	B01J19/16
代理机构		代理人
主权项
地址

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