ULB definitions

Ulb

1) Ultra wideband
Found on https://www.crosswordclues.com/clue/ulb

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ULB

(Aviation abbreviations:) underwater locator beacon
Found on http://www.aviationonline.co.uk/glossary/uz.htm

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ULB

Ultra Wideband
Found on http://www.encyclo.co.uk/visitor-contributions.php

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