Assignee

PROFESSIONAL TRAINING SYSTEMS

US·1 granted patent·201 citations·filing 1987–1987

Technology mixG09B1 G11B1

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0191US4855842ADedicated programmable controller for interactive video disc systemPROFESSIONAL TRAINING SYSTEMS·Filed 1987·Granted Aug 8, 1989·201 cites·5 claims

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