What does HSB stand for?
HSB stands for "Horizontal Sounding Balloon"
How to abbreviate "Horizontal Sounding Balloon"?
"Horizontal Sounding Balloon" can be abbreviated as HSB
What is the meaning of HSB abbreviation?
The meaning of HSB abbreviation is "Horizontal Sounding Balloon"
What does HSB mean?
HSB as abbreviation means "Horizontal Sounding Balloon"
