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发明名称	Dye
摘要
申请公布号	US2339837(A)	申请公布日期	1944.01.25
申请号	US19410385150	申请日期	1941.03.25
申请人	PENNSYLVANIA BITUMINOUS COAL RESEARCH, INC.	发明人	CHARMBURY HERBERT B.
分类号	C09B59/00	主分类号	C09B59/00
代理机构		代理人
主权项
地址

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