Assignee
PRISMA SKYLTREKLAM AB
SE·2 granted patents·23 citations·filing 1988–1992
Top patents by PatentIndex Score
2 records- 0141US5161421ADriving device for driving or operating elongate display members at signs for consecutive, repeated presentation of series of imagesPRISMA SKYLTREKLAM AB·Filed 1992·Granted Nov 10, 1992·20 cites·10 claims
- 0228US4894645AIncandescent matrix display with high frequency lamp drivingPRISMA SKYLTREKLAM AB·Filed 1988·Granted Jan 16, 1990·3 cites·4 claims
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