Dbo definitions

DBO

Lighting term. Dead blackout: a sudden, instantaneous switching off of all lights.
Found on http://www.encyclo.co.uk/local/21207

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DBO

See Dead Black Out.
Found on http://www.encyclo.co.uk/visitor-contributions.php

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DBO

Lighting term. Dead blackout: a sudden, instantaneous switching off of all lights.
Found on https://www.encyclo.co.uk/local/21782

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