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Inventor
MOROOKA TSUTOMU
JP
2 patents
Patents
2 patents
US4122376A
Oct 24, 1978
Multi-indicia fluorescent display tube
FUTABA DENSHI KOGYO KK
9 citations
69
US4190787A
Feb 26, 1980
Phosphorus luminescent display tube
FUTABA DENSHI KOGYO KK
4 citations
58