Invention Grant
US07903503B2 Dual illumination watch face, and associated methods 有权
双重照明表面及相关方法

Dual illumination watch face, and associated methods
Abstract:
Systems and methods for a dual illumination watch face having a tritium gas tube coupled with a dial, minute hand or hour hand of the watch face, and phosphorescent material disposed with at least one of the dial, minute hand and hour hand.
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