What does ULB stand for?

ULB stands for "Un-Lighted Buoy"

How to abbreviate "Un-Lighted Buoy"?

"Un-Lighted Buoy" can be abbreviated as ULB

What is the meaning of ULB abbreviation?

The meaning of ULB abbreviation is "Un-Lighted Buoy"

What does ULB mean?

ULB as abbreviation means "Un-Lighted Buoy"