发明名称 Self-illuminating panel switch
摘要 In a self-illuminating panel switch, a key top is supported by a front panel. The key top has a rear surface on which a character area is printed with one of a dark color or a light color, and the background area is printed with the other of a dark color and a light color. Because the printing is made on the rear or inner surface of the key top, the ink is free from wear or removal.
申请公布号 US4937408(A) 申请公布日期 1990.06.26
申请号 US19890356215 申请日期 1989.05.24
申请人 MITSUBISHI DENKI KABUSHIKI KAISHA 发明人 HATTORI, YOSHIHIRO;MURAKAMI, TAKASHI;TSUJITA, YOSHIHIRO
分类号 H01H9/18;H01H13/02;H01H13/702;H04M1/02;H04M1/22 主分类号 H01H9/18
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