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发明名称
ELECTROCHROMIC INDICATING ELEMENT
摘要
申请公布号
JPS52156646(A)
申请公布日期
1977.12.27
申请号
JP19760073128
申请日期
1976.06.23
申请人
RICOH KK
发明人
SEGAWA HIDEO;KATOU SHIYOUSHICHI
分类号
G02F1/17;G02F1/15;G02F1/153;G09F9/00;G09F9/30
主分类号
G02F1/17
代理机构
代理人
主权项
地址
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