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发明名称
GRADATION CONTROL CIRCUIT
摘要
申请公布号
JPH0486892(A)
申请公布日期
1992.03.19
申请号
JP19900203246
申请日期
1990.07.31
申请人
RICOH CO LTD
发明人
YANO TOMOAKI
分类号
G02F1/133;G09G3/36
主分类号
G02F1/133
代理机构
代理人
主权项
地址
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