G - Physics – 04 – B
Patent
G - Physics
04
B
G04B 19/32 (2006.01)
Patent
CA 2753924
Systems and methods for a dual illumination watch face having a tritium gas tube (116, 118, 120, 122) coupled with a dial (101), minute hand (104) or hour hand (106) of the watch face, and phosphorescent material (110) disposed with at least one of the dial, minute hand and hour hand.
Olmes James Brewster
Smart & Biggar
LandOfFree
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