Color forming compounds containing sulphonamide groups,申请号US19390266152-传众专利搜索

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发明名称	Color forming compounds containing sulphonamide groups
摘要
申请公布号	US2271238(A)	申请公布日期	1942.01.27
申请号	US19390266152	申请日期	1939.04.05
申请人	EASTMAN KODAK COMPANY	发明人	VITTUM PAUL W.;PETERSON WILLARD D.;PORTER HENRY D.
分类号	G03C7/36	主分类号	G03C7/36
代理机构		代理人
主权项
地址

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