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发明名称
DIAZO COPYING METHOD
摘要
PURPOSE:To enable distinct black dye images which are stable despite minor variations in developing conditions and exhibit a gray or blue color to be obtained by using specific compound as a coupling component.
申请公布号
JPS5435723(A)
申请公布日期
1979.03.16
申请号
JP19770102004
申请日期
1977.08.25
申请人
RICOH KK
发明人
TAMURA HIROSHI;SAKAI KIYOSHI
分类号
G03C1/58;G03C5/18
主分类号
G03C1/58
代理机构
代理人
主权项
地址
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