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发明名称
ELECTROCHROMIC DISPLAY WATCH
摘要
申请公布号
JPS5472085(A)
申请公布日期
1979.06.09
申请号
JP19770139143
申请日期
1977.11.19
申请人
RICOH WATCH
发明人
YAMANO SHIYOUZOU
分类号
G04G5/04;G04C9/00;G04C17/00;G04G5/00;G04G9/00;G09F9/00;G09G3/19
主分类号
G04G5/04
代理机构
代理人
主权项
地址
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