
1) English brand 2) Longtime Ivory rival 3) Rescue equipment 4) Soap brand
Found on
https://www.crosswordclues.com/clue/lifebuoy

A lifebuoy, ring buoy, lifering, lifesaver, life donut, life preserver or lifebelt, also known as a `kisby ring` or `perry buoy`, is a life saving buoy designed to be thrown to a person in the water, to provide buoyancy, to prevent drowning. Some modern lifebuoys are fitted with one or more seawater-activated lights, to aid rescue at night. Th...
Found on
http://en.wikipedia.org/wiki/Lifebuoy

Lifebuoy Second World War British army slang for the Mk 1 and Mk 2 portable flamethrowers.
Found on
http://www.probertencyclopaedia.com/browse/ZL.HTM
No exact match found.