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发明名称
VARYING COLOUR DISPLAY SYSTEM
摘要
申请公布号
CA326601(A)
申请公布日期
1932.10.04
申请号
CAD326601
申请日期
申请人
THE ROYAL DISPLAY
发明人
JOHN KENNETH KING
分类号
主分类号
代理机构
代理人
主权项
地址
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