What does OSO stand for?
OSO stands for "Ordnance Safety Observer"
How to abbreviate "Ordnance Safety Observer"?
"Ordnance Safety Observer" can be abbreviated as OSO
What is the meaning of OSO abbreviation?
The meaning of OSO abbreviation is "Ordnance Safety Observer"
What does OSO mean?
OSO as abbreviation means "Ordnance Safety Observer"
